The City of Greenup 3mgd Actiflo Carb Water Treatment ... · 3mgd Actiflo Carb Water Treatment...

www.howertoneng.com

[email protected]

Greenup

404 Main Street

Greenup, KY 41144

P: 606 • 473 • 5684

F: 606 • 473 • 5682

The City of Greenup

3mgd Actiflo Carb Water Treatment Plant

Addendum #1

05/21/2018

1. The bid opening date shall be changed to: 06/12/2018 at 2:00 p.m. (see attached revised Section 00010 Bid

Advertisement).

2. Pre-Bid Meeting date will be the following: (see attached revised Section 00010 Bid Advertisement)

May 29, 2018 2:30 p.m.

Greenup City Building

1005 Walnut Street

Greenup, KY 41144

3. The following specifications have been revised and attached:

a. 11358 – Chemical Storage Tanks

b. 11357 – Chemical Feed Pumps for Actiflo Carb

c. 11360 – PAC System

d. 11602 – Leopold Filtration Equipment

4. See attached Leopold Detail Sheets:

a. Filter P&ID Drawing Legend

b. Dual Filter Control Console – Console Layout

c. Single Filter control Console – Console Layout

d. Filter System P&ID Filter Detail

e. Filter System P&ID Filter System Overview

Richard L. Howerton, PE, PLS, CFM

[email protected]

http://www.howertoneng.com/

mailto:[email protected]

Advertisement for Bids

00010-1

SECTION 00010

ADVERTISEMENT FOR BIDS

The City of Greenup – Proposed 3mgd Actiflo Carb Water Treatment

Plant

Greenup, Kentucky

OWNER: The City of Greenup

Separate sealed BIDS:

The City of Greenup – Proposed 3mgd Actiflo Carb Water Treatment

Plant Project

Refer to specifications and drawings.

Will be received by Mayor Lundie Meadows, at The City of Greenup,

1005 Walnut Street, Greenup, KY 41144 until 2:00 P.M. Local Time,

6/12/2018 and then at said office publicly opened and read aloud.

Pre-Bid meeting will be held on 05/29/2018 2:30 p.m. at The City

of Greenup’s City Building located at 10005 Walnut Street,

Greenup, KY 41144.

Bidders are encouraged to schedule an onsite review prior to

bidding. Please contact the city for more information.

Drawings, specifications and contract documents may be examined at

the following places:

The City of Greenup Howerton Engineering

1005 Walnut Street 404 Main Street

Greenup, KY 41144 Greenup, KY 41144

plans may be obtained from Key Blue Prints, Inc., 411 Elliott

Avenue, Cincinnati, OH 45215, 614-228-3285 the cost of shipping

and duplication from Key Blue Prints. www.keycompanies.com.

After award of a Contract, the Contractor will be furnished,

without charge, 6 sets of plans and 3 set of specifications needed

to prosecute the work. Subcontractors, manufacturers, and

suppliers shall obtain plans and specifications from the

Contractor.

Sealed proposals shall be marked on the outside of the container

as follows:

“The City of Greenup – Proposed 3mgd Actiflo Carb Water Treatment

Plant Project” Not to be opened until 2:00 P.M. local time,

6/12/2018

The following addenda have been received and considered in the

enclosed bid: ________________________”

Advertisement for Bids

00010-2

Time of Completion for the project is 540 calendar days.

If forwarded by mail, the sealed envelope containing the bid must

be enclosed in another envelope and mail to the above address.

Mailed bids must reach this physical address prior to the

scheduled closing time for receipt of proposals.

The OWNER reserves the right to waive formalities or to reject any

or all bids. Each BIDDER must deposit with his bid, security in

the amount, form and subject to the conditions provided in the

Instructions to Bidders.

Award of the Contract shall be made to the lowest, responsive

responsible bidder. Refer to the Contract Specifications for

specific requirements.

MINORITY FIRMS ARE ESPECIALLY ENCOURAGED TO BID. City of Greenup

has established a local labor use goal, refer to section 00715 –

Local Labor Goal.

Bids shall be accompanied by a certified check of bid bond payable

to the Owner an amount no less than ten percent (10%) of the base

bid. No bidder may withdraw his bid for a period of one hundred

fifty (150) days after the date bids are opened. He may, however,

withdraw his bid at any time prior to the time and date scheduled

for opening of same or any authorized postponement thereof. Any

bid received after the time and date specified will not be

considered and will be returned unopened to the bidder.

Bidders must comply with the President’s Executive Order Nos.

11246 and 11375, which prohibit discrimination in employment

regarding race, creed, color, sex or national origin. Bidders

must comply with Title VI of the Civil Rights Act of 1964, the

Anti-Kickback Act, and the Contract Work Hours Standard Act.

Bidders must certify that they do not and will not maintain or

provide for their employees any facilities that are segregated on

the basis of race, creed, color or national origin.

Technical questions concerning interpretation of the Drawings and

Specifications should be addressed to Richard Howerton, PE,

Howerton Engineering, 404 Main Street, Greenup, KY 41144 Telephone

(606) 473-5684. All requests for interpretation shall be made in

writing. Where appropriate, the response and addenda will be

issued to all plan holders in writing.

“Equal Employment Opportunity”

END OF SECTION

Chemical Storage Tanks ______________________________________________________________

Section 11358 Page 1 of 7

PART 1 GENERAL

1.1. The Contractor shall provide and install four high density crosslinked polyethylene

tanks, 1.9 specific gravity wall thickness and shall be vertical closed top with flat bottom.

1.2. The tank shall be anchored to the floor.

PART 2 PRODUCTS

2.1. Tanks shall be manufactured by Assman Corporation of America or approved

equal, in accordance with the definitions given in ASTM D 1998-15 (polyethylene upright storage tanks.)

2.2. Plastics: The tanks shall be molded from crosslinked polyethylene. The resin used for molding shall be Schulink XL350, as manufactured by A. Schulman, or approved equal. The plastic shall contain no fillers. All plastic shall contain a minimum of 0.3% U.V. stabilizers compound by the resin manufacturer. Pigments may be added as desired by the customer or as designated by the tank manufacturer, not to exceed 0.5%-dry blended and 0.2%-compounded in, of the total weight. The mechanical properties of the polyethylene shall include ESCR, condition A F50 results for 100% Igepal as defined in ASTM D1593 as well as the results using a 10% Igepal solution. Both test results must exceed 1000 hours of exposure without failure. The tank manufacturer must supply a copy of the mechanical property table as provided by the resin manufacturer for the resin used to manufacture the specified polyethylene tank.

2.3. Tank Construction: The tanks shall be designed with a hoop stress value no

greater than 600 PSI at 100 degrees F, with a safety factor of no less than 2. The Barlow Formula shall be used to calculating the wall thickness at the bottom sidewall or at the area of the tank that experiences the greatest head pressure. The manufacture shall produce the crosslinked polyethylene tank with verifiable uniform wall thickness throughout the entire surface area of vessel. The crosslinked tank shall have a minimum 70% crosslinking throughout and Gel Test results shall be provided by the manufacturer using the test method as defined in ASTM D 1998-15. The sample used for the test shall come from the lowest point possible on the sidewall of the tank. The vessel shall be air-cooled to ensure a consistent cure throughout the thickness of the part and reduce the stress caused by shrinkage.

2.4. Appearance: The finished surface shall be as free as commercially practical from

visual defects such as foreign inclusions; air bubbles, pinholes, and craters. All edges where openings are cut into the tanks shall be trimmed smooth.

2.5. Dimensions and Tolerances: The tank diameter shall be measured externally. The

tolerance on the outside diameter shall be plus or minus 3%. The measurement shall be taken with the tank in the vertical position. All tanks shall have a minimum 2” knuckle radius.



2.6. Quality Control: The tank manufacturer must be ISO 9001 certified company with a minimum 10 years experience in the municipal market.

2.7. Tank Design: The design of the vessel shall be vertical, flat bottom, closed top, and

one piece seamless in construction. The top dome shall have a minimum 3 flats to locate top dome mounted nozzles.

2.8. Accessories

2.8.1. Side Wall Fittings: Fitting shall pass through the sidewall of the primary tank.

The fitting shall be a metallic double male bolted style fitting. The metallic fitting shall be constructed out of material compatible with the tank contents. Fitting shall be constructed to an ANSI 150 LB flange bolt hole pattern. A single gasket shall be placed between the metallic fitting and the inside of the primary tank wall. All mounting hardware shall be compatible with the tank contents. The sidewall fitting shall be designed so that all crosscuts are completely sealed off from chemical exposure by a full faced gasket compatible with the chemical being stored. The discharge nozzles on bulk tanks greater than 1,500 gallons shall be elevated with internal siphon tubes. Smaller bulk and day tank nozzles shall be located on the lower sidewall of the storage tank on the recessed fitting placement flat. Tank shall be shipped with discharge nozzle installed. No additional fitting installation will be required onsite. Bulk tank discharge assemblies must be provided with TEFLEX-C3 Teflon flexible expansion joint with stainless steel hardware. Day tank discharge to the chemical feed skid systems shall be connected with flexible hose or tubing.

2.8.2. Dome Fittings: Tanks shall be equipped with three (3) molded in fitting

placement flats. Molded in flats shall be at 90-degree increments from tank manway. Flats shall be 14" x 14" square. All dome connections shall be PVC bulkhead fittings with Viton elastomers, manufactured by Hayward Industries. The use of Hayward Self-aligning dome fittings is permitable if the tank nozzle must be located off of a molded in flat. All dome fittings shall be fume tight.

2.8.3. Manway Covers: Sealed manway covers shall be 24” bolted and gasketed with

a ½” thick polyethylene plate, ½” thick XLPE gasket and 316 S/S or PVC threaded bolts or threaded covers with gaskets. The manway covers shall be mounted on a raised flat molded integrally with the primary dome for structural support.

2.8.4. Vents: The vent size shall be directly related to the size of piping specified for

discharge and filling. The size of vent shall also take into consideration product flow and air pressure experienced in normal fill and discharge operations. The standard vent shall be a schedule 40 PVC u-vent assembly, or a flanged bulkhead.

2.8.5. Name Plates: Self-adhesive, phenolic plastic engraved name plates shall

include: Type of vessel, total volume and working capacity, product being stored including percentage of concentration, date vessel manufactured, and name of facility owner.



2.8.6. Tie Downs: Each bulk tank shall have a 316 stainless steel cable restraint system rated for Wind loads of 95-150 mph, and Seismic zone 2, the restraints shall include the cable assembly and (4) steel reinforced polyethylene anchor pads.

2.8.7. Tank Description and nozzle requirements: All connection penetrating the tank

wall shall be made by the tank manufacturer.

2.9. Tank Design Criteria

Sodium Hypochlorite Bulk Tanks Condition: 12.5% Sodium Hypochlorite, ambient temperature, atmospheric pressure, 1.26

specific gravity Quantity: 2 Two-model ICT3000, dome top, flat bottom vertical bulk storage tank. Rated

for 1.9 specific gravity liquids. Exceeds ASTM D 1998-06 standards minimum guidelines.

Size: 90” diameter X 122” overall height Capacity: 3,000 US-gallons Material: “ NSF” Approved Schulink Crosslinked Polyethylene. Color: Natural U.V. UV stabilizer provided with the resin. Support: Tank rests on fully supported flat foundation. Tank to be installed per Assmann

Corporation Tank Installation and Use Guidelines for Bulk Storage Tanks. Flexible expansion joints are required on all sidewall nozzles.

Qty Description Nozzles: 1 4” PVC bulkhead, Viton gasket (Vent) 1 4” PVC flange adapter 1 2” PVC bulkhead fitting, Viton gasket (Fill) 1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 2” Titanium bolted double male nozzle, Viton gasket (Discharge) 1 2” PVC flange adapter 1 2” PVC siphon 1 2” Teflon expansion joint, S/S hardware full face Viton gasket 1 3” PVC bulkhead fitting, Viton gasket (Overflow) 1 3” PVC overflow pipe with S/S wall brackets 1 3” PVC self-aligning bulkhead fitting, Viton gasket (Level) 1 11” Threaded cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate 1 ASCE site specific seismic cable restraint system (Restraint System) (4) top, (4) bottom polyethylene lugs (Concrete anchors by others)

Ferric Chloride Bulk Tank(s)

Condition: 40% Ferric Chloride, ambient temperature, atmospheric pressure, 1.4 specific gravity



Quantity: 2 Two-model ICT5200, dome top, flat bottom vertical bulk storage tank. Rated for 1.9 specific gravity liquids. Exceeds ASTM D 1998-06 standards minimum guidelines.



Qty Description Nozzles: 1 4” PVC bulkhead, Viton gasket (Vent) 1 4” PVC flange adapter 1 2” PVC bulkhead fitting, Viton gasket (Fill) 1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 2” Titanium bolted double male nozzle, Viton gasket (Discharge) 1 2” PVC flange adapter 1 2” PVC siphon 1 2” Teflon expansion joint, S/S hardware full face Viton gasket 1 3” PVC bulkhead fitting, Viton gasket (Overflow) 1 3” PVC overflow pipe with S/S wall brackets 1 3” PVC self-aligning bulkhead fitting, Viton gasket (Level) 1 24” Bolted gasketed cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate 1 ASCE site specific seismic cable restraint system (Restraint System) (4) top, (4) bottom polyethylene lugs (Concrete anchors by others)

Sodium Hydroxide Tank Condition: 50% Sodium Hydroxide, ambient temperature, atmospheric pressure, 1.53

specific gravity Quantity: 1 One-model ICT300, dome top, flat bottom vertical bulk storage tank. Rated


Size: 35” diameter X 82” overall height Capacity: 300 US-gallons Material: “ NSF” Approved Schulink Crosslinked Polyethylene. Color: Natural U.V. UV stabilizer provided with the resin. Support: Tank rests on fully supported flat foundation. Tank to be installed per Assmann


Qty Description Nozzles: 1 2” PVC bulkhead, EPDM gasket (Vent) 1 2” PVC flange adapter 1 2” PVC bulkhead fitting, EPDM gasket (Fill)



1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 1” 316L Stainless steel bolted double male nozzle, EPDM gasket (Discharge) 1 2” PVC bulkhead fitting, EPDM gasket (Level) 1 11” threaded cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate

Corrosion Inhibitor (Sodium Hexametaphosphate) Bulk Tanks

Condition: 8% Sodium Hexametaphosphate, ambient temperature, atmospheric pressure Quantity: 1 One-model ICT3000, dome top, flat bottom vertical bulk storage tank. Rated




Qty Description Nozzles: 1 4” PVC bulkhead, Viton gasket (Vent) 1 4” PVC flange adapter 1 2” PVC bulkhead fitting, Viton gasket (Fill) 1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 2” Titanium bolted double male nozzle, Viton gasket (Discharge) 1 2” PVC flange adapter 1 2” PVC siphon 1 2” Teflon expansion joint, S/S hardware full face Viton gasket 1 3” PVC bulkhead fitting, Viton gasket (Overflow) 1 3” PVC overflow pipe with S/S wall brackets 1 3” PVC self-aligning bulkhead fitting, Viton gasket (Level) 1 11” Threaded cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate 1 ASCE site specific seismic cable restraint system (Restraint System) (4) top, (4) bottom polyethylene lugs (Concrete anchors by others)

Ferric Day Tank Condition: 40% Ferric Chloride, ambient temperature, atmospheric pressure, 1.4 specific

gravity Quantity: 1 One-model ICT550, dome top, flat bottom vertical bulk storage tank. Rated


Size: 48” diameter X 82” overall height



Capacity: 550 US-gallons Material: “ NSF” Approved Schulink Crosslinked Polyethylene. Color: Natural U.V. UV stabilizer provided with the resin. Support: Tank rests on fully supported flat foundation. Tank to be installed per Assmann


Qty Description Nozzles: 1 2” PVC bulkhead, EPDM gasket (Vent) 1 2” PVC flange adapter 1 2” PVC bulkhead fitting, EPDM gasket (Fill) 1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 1” 316L Stainless steel bolted double male nozzle, EPDM gasket (Discharge) 1 2” PVC bulkhead fitting, EPDM gasket (Level) 1 11” threaded cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate

Sodium Hypochlorite Day Tank Condition: 12.5% Sodium Hypochlorite, ambient temperature, atmospheric pressure, 1.26





Qty Description Nozzles: 1 2” PVC bulkhead, Viton gasket (Vent) 1 2” PVC flange adapter 1 2” PVC bulkhead fitting, Viton gasket (Fill) 1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 1” Titanium bolted double male nozzle, Viton gasket (Discharge) 1 2” PVC bulkhead fitting, Viton gasket (Level) 1 11” threaded cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate



Hydrofluorosilicic Acid Day Tank Condition: 23% Hydrofluorosilicic Acid, ambient temperature, atmospheric pressure, 1.2





Qty Description Nozzles: 1 2” PVC bulkhead, EPDM gasket (Vent) 1 2” PVC flange adapter 1 2” PVC bulkhead fitting, EPDM gaset (Fill) 1 2” PVC flange adapter 1 2” PVC 45 degree anti-foam elbow 1 1” Hastelloy bolted double male nozzle, EPDM gasket (Discharge) 1 2” PVC bulkhead fitting, EPDM gasket (Level) 1 11” threaded cover (Manhole) 1 ASTM testing and documentation (ASTM Doc) 1 White phenolic engraved tank data plate

Chemical Feed Pumps for ActiFlow Carb Option


PART 1 - GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.02 SUMMARY

A. The Chemical Feed System shall be the standard equipment of the supplier involved in the manufacture of similar type equipment and shall be as manufactured by ProMinent Fluid Controls, Inc. or Engineer Approved Equal. All chemical feed pumps and systems specified herein and in Section 11320 (Actiflo® Carb System) shall be manufactured and supplied by the same manufacturer.

B. Chemical Metering Pumps shall be positive displacement pumps of either the electronic solenoid actuated diaphragm type or motor driven mechanical diaphragm type. This specification addresses skid mounted chemical metering pump systems complete with the skid assembly containing chemical metering pumps, all necessary piping, valves, fittings, supports, electrical controls, and accessories as specified herein. The metering pump skid shall contain the following items:

1. Skid with drip lip

2. Metering pumps with adjustable stroke length adjustment

3. Calibration column

4. Pulsation dampeners

5. Pressure gauges with diaphragm seals

6. Ball valves

7. Pressure relief valves

8. Backpressure valves

9. All piping, valves, gaskets, supports, hardware, wiring, and accessories necessary for a fully functioning skid.

C. Equipment of a different type, size, weight or design of that specified herein can be offered. However, such equipment shall be acceptable only on the basis of the following.

1. Any revisions in the design and/or construction of the structure, piping, appurtenant equipment, electrical work, etc., required to accommodate such a substitution shall be made at no additional cost to the Owner.

2. Changes in scope of equipment and performance thereof shall be the responsibility of the Contractor.

3. All modifications to the scope shall be approved by the Engineer and must be determined to be the equal of that specified.



1.03 REFERENCE STANDARDS

A. The latest published edition of a reference shall be applicable to this Project unless identified by a specific edition date.

B. All reference amendments adopted prior to the effective date of this Contract shall be applicable to this Project.

C. All materials, installation and workmanship shall comply with the applicable requirements and standards addressed within the following references:

1. American National Standard Institute (ANSI)

2. Occupational Safety and Health Administration (OSHA)

3. National Electrical Manufacturers Association (NEMA)

4. National Electrical Code (NEC)

5. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

1.04 SUBMITTALS

A. Contractor shall provide all submittals in accordance with the requirements of Section 01300 Submittal Procedures, and Section 01 33 23 Shop Drawings, Product Data and Samples.

B. Product Data:

1. One (1) electronic copy of submittal data will be supplied for the system.

2. Component data and shop drawings of the system will be supplied, including dimensions, weight, and parts list.

3. When applicable control panel elevation, control schematics and component data will be supplied.

C. Record Documents: Manufacturer's warranty form in which manufacturer agrees to repair or replace components that fail in materials or workmanship within specified warranty period.

D. Operation and Maintenance Manuals. Provide complete operation and maintenance manuals for all equipment, in accordance with the requirements of Section 01 78 00, Closeout Submittals.

1.05 QUALITY ASSURANCE

A. Manufacturer shall have minimum ten (10) years’ experience in manufacturing Chemical Feed Systems.

B. All equipment provided under this section shall be obtained from a single supplier or manufacturer who shall assume full responsibility for the completeness and proper installation of the Chemical Feed System.



C. To insure quality and unit responsibility, the Chemical Feed System must be assembled and tested by the manufacturer at its facility and be a standard regularly marketed product of that manufacturer. The manufacturer must have a physical plant, technical and design staff and fabricating personnel to complete the work specified. Skids assembled by a second party fabricator, integrator or contractor shall not be acceptable.

D. Prior to shipment the Chemical Feed System shall be inspected for quality of construction verifying all fasteners and fittings are tight, all wires are secure and connection whisker-free. The Chemical Feed System shall be tested under pressure for a minimum of one hour at 100 psi. If leaks are found they shall be fixed and a new test shall be conducted for an additional hour at 100 psi until the Chemical Feed System is verified to be leak free.

PART 2 - PRODUCTS

2.01 GENERAL

A. All materials shall meet or exceed all applicable referenced standards, federal, state and local requirements, and conform to codes and ordinances of authorities having jurisdiction.

B. The feed system shall be specially designed, constructed and installed for the service intended and shall comply with the conditions listed in the schedule in Section 2.02 below. The VENDOR shall submit compatibility data from the manufacturer being supplied to confirm the materials of construction

C. The skid mounting of the metering pumps shall conform the following requirements:

1. Each chemical feed system shall be completely assembled, mounted, calibrated, tested, and delivered to the site on a single skid. Components to be mounted on the skid are as indicated on the drawings and shall include the metering pumps, calibration column, piping, valves, piping accessories (pulsation dampeners, strainers, etc.), and wiring integral to the skid. The chemical feed system supplier shall be responsible for providing all equipment, valves and piping within the skid boundary.

2. The skids shall be constructed of a minimum 3/8” thick fusion welded polypropylene sheets with adequate supports for all equipment and piping. Fork lift truck cut outs be provided. The polypropylene material shall be UV protected and shall be suitable for either floor or wall mounting as specified below or in project drawings.

3. All components of the skid-mounted system (pumps, piping and controls) shall be tested prior to shipment as described in Part 1.06.D.

D. Calibration Chamber: Provide one, clear plastic calibration chamber with vent for use in calibrating the metering pumps.

1. The chamber shall be sized to give adequate capacity for a minimum 60 second draw down test.

2. The scale shall give direct readings in GPH without the need for calculations.

3. The calibration chamber shall be piped and valved so that each pump shall be able to utilize the calibration chamber without interfering with the operation of the other pumps.

4. The top of the chamber shall have a fitting to allow for piping to a common vent.

E. Pulsation Dampeners:



1. Pulsation dampeners shall be of the single diaphragm design, capable of arresting water hammer in the pump discharge lines created by the metering pumps. The pulsation dampener shall dampen flow pulsations a minimum of 95 percent.

2. Pulsation dampeners shall be provided with valves, gauges and fittings necessary for maintaining required air pressure in the air chamber.

3. Materials of construction of diaphragm and body shall be corrosion resistant to the chemical fluid pumped.

4. Provide one dampener on the discharge side of each metering pump.

5. Each pulsation dampener shall include an integral pressure gauge.

F. Piping, Valves and Appurtenances:

1. All pipe, molded fittings, valve end connectors and fabricated piping components shall be made of Schedule 80 PVC. Cement shall be as recommended by the pipe manufacturer for the services outlined in this Section.

2. Tru-union Isolation valves shall be Asahi Type 21 ball valves and provided for isolation of major equipment. Seals shall be compatible with the chemical being pumped.

G. Back Pressure and Pressure Relief Valves;

1. Provide one type of each valve for each metering pump.

2. Valves shall be spring-loaded, diaphragm-type, with materials of construction compatible with chemical service.

H. Wye Strainer;

1. Provide one type on the system.

2. Strainer shall be Hayward and protect piping system with 1/32” perf screen. Strainer shall be made of materials of construction compatible with chemical service.

I. Metering Monitor;

1. Provide one type of each monitor for each metering pump.

2. Metering monitor shall be ProMinent Fluid Controls PVDF/Viton type III. Unit shall directly connect to the top of the metering pump discharge check valve and be electrically connected directly to the face of the metering pump



2.02 CHEMICAL FEED SYSTEMS REQUIRED

Service Chemical Sodium

Hypochlorite Caustic

Hydro-fluosilicic

Acid

Sodium Hexameta-phosphate

Qty 1 1 1 1

Pump QTY 5 5 2 2

Chemical Conc % 12.5% 50% 23% 8%

Specific Gravity 1.048

Temperature F

Feed Rate GPH 4 5 4 5

Pressure at Injection Point PSIG 30 30 150 150

Drive Type Solenoid / Motor

Solenoid Solenoid Motor Motor

Speed Control Manual / 4-20mA

4 – 20 mA 4-20 mA 4 – 20 mA 4 – 20 mA

Stroke Adjustment

Manual / 4-20mA

Manual Manual Manual Manual

Electrical Requirement

V / ph / Hz

120 / Single 120 /

Single 120 / Single 120 / Single

Control Panel None /

On Skid / Remote

On Skid On Skid On Skid On Skid

No. of Discharge Points # 4 4 2 2

Pump Model

Prominent GammaX

Prominent GammaX

Prominent Sigma

Prominent Sigma

2.03 METERING PUMPS

A. General

1. Pump construction and features vary as a function of the pump flow output range. See paragraph 2.02.B above for pump flow range requirements, and see paragraphs below for pump specific design features.

2. The pump shall be designed for leak-proof operation and trouble-free performance.

B. Metering Pump Capacity up to 8 gph (Prominent “GammaX” series, Sodium Hypochlorite and Caustic)



1. The chemical metering pump(s) shall be microprocessor-controlled, simplex, solenoid-driven, reciprocating, mechanically-actuated diaphragm type. Motor driven metering pumps shall not be acceptable for the specified services. The housing shall be rated with a minimum IP65 protection rating.

2. The power supply shall have a universal power supply that allows it to operate at a supply voltage in the range of 100-230 VAC +/- 10%, 50-60 Hz, single-phase. The microprocessor is to automatically compensate for supply voltage variations within 10% of the rated voltage such that the frequency of the pump remains constant.

3. All pumping functions shall be set by membrane-switch keypad and clickwheel. Status shall be displayed on an illuminated LCD. The keypad shall allow for simple scrolling and display of programmed parameters.

4. The liquid end shall be physically separated from the drive unit by a backplate with weep hole creating an air gap. An elastomer shaft wiper seal shall prevent contamination of the solenoid if the primary diaphragm fails.

5. The diaphragm shall be constructed of a steel core, vulcanized into nylon reinforced EPDM, with PTFE-faced fluid contact surface. The diaphragm shall be of a convex design fitting into a concave liquid end to minimize dead head volume and promote flow of solids in suspension. The pump shall also have a diaphragm failure detector option.

6. Liquid End Materials of Construction: shall be either virgin PVDF, Polypropylene, Acrylic, Carbon Filled Teflon or 316 Stainless Steel as required by the application. The PVDF liquid end shall be NSF 61 Certified for use with standard water treatment chemicals.

7. Stroke length control shall be electronically adjustable by means of the clickwheel, in increments of 1%, from 0% to 100% of stroke length. Stroke length shall be controlled within the pump solenoid and provide accurate feedback to the electronics of the pump for calibration for LCD display of stroke length.

8. Stroke frequency shall be adjustable via the clickwheel and membrane-switch keypad from 1 to 12,000 strokes per hour (200 spm).

9. The pump shall include the provision and drive technology to enable the timed flow of suction and discharge stroke profiles to optimize an application based on discharge or suction conditions. There shall be options for the following operations: Optimum, Fast Discharge, Sine Mode Discharge, Continuous Discharge or interface with a DFMa flow metering depending on application requirements.

10. It shall be possible to select suction stroke profiles based upon the use of higher viscosity fluids. High Viscosity (HV) stroke profiles shall allow for lowering the speed of the pump suction to ensure complete filling of the liquid end on the suction stroke. Thes settings shall include, Normal, HV1, HV2 and HV3 with progressively lower stroking speeds for increasingly high fluid viscosity applications.

11. For simplified operator monitoring the pump shall be equipped with three LED displays (Red, Yellow and Green) to locally indicate normal operation, fault conditions and warning conditions.

12. Operating Modes – The pump shall have the following modes available:

a. Manual – Mode permits the pump to operate the pump stoke and speed controls manually.



b. Contact – Mode provides the option of controlling the pump externally by means of potential free contacts. The Pulse control option in the contact mode enables you to preselect the number of strokes.

c. Batch – Mode provides the option of working with large transfer factors (up to 99,999). Metering can be triggered either by pressing the Clickwheel or by a pulse received via the “External control” terminal or through a contact or a semiconductor switching element. It is possible to pre-select a metering volume (batch) or a number of strokes using the Clickwheel.

d. Analog – Mode allows the capacity and/or stroke rate to be controlled via an analogue current signal via the “External Contact” socket. The processing of the current signal can be preselected via the control unit.

13. The chemical metering pumps shall be Gamma X series models as manufactured by ProMinent Fluid Controls, Pittsburgh, PA.

C. Metering Pump Capacity from 0.5 to 264 gph (Prominent “Sigma” series, Hydrofluosilicic Acid and Sodium Hexametaphosphate):

1. The chemical metering pump shall be a microprocessor-controlled, simplex, motor-driven, reciprocating, mechanically-actuated diaphragm type. The pump shall include integral motor, oil-lubricated gear reducer, and cam-and-spring drive mounted in aluminum housing. Such housing to be sealed into an outer plastic housing for corrosion protection with heat sinks for cooling. The housing shall be rated IP65.

2. An AC inverter shall be integral to the microprocessor control and function of the pump. Inverter shall drive integral motor sized for the specific pump size. The power supply to pump shall be 120VAC, 60 Hz, single phase. Stroke frequency control for this metering pump shall be accomplished through microprocessor control with proportional start/stop of the motor, from 0% to 33% of stroke rate. Stroke rate shall be accomplished through variable speed of the motor from 34% to 100% of stroke rate.

3. The liquid end shall be physically separated from the drive unit by a backplate with weep hole creating an air gap. An elastomer shaft wiper seal shall prevent contamination of the solenoid if the primary diaphragm fails. The diaphragm shall be constructed of a steel core, vulcanized into nylon reinforced EPDM, with PTFE-faced fluid contact surface.

4. Liquid End Materials of Construction: The diaphragm shall be of a convex design fitting into a concave liquid end to minimize diaphragm wear, liquid end dead volume, and to promote flow of solids in suspension.

5. Liquid end materials of construction shall be PVDF. The suction and discharge valve shall be PVDF with PTFE faced Viton gasket seals and ceramic valve balls.

6. The chemical metering pumps shall be Sigma series models as manufactured by ProMinent Fluid Controls, Pittsburgh, PA.

2.04 SYSTEM DESCRIPTION

A. General

1. All wetted surfaces of feed pumps and all sealing gaskets shall be suitable for continuous exposure to chemical service shown on the pump schedule.



2. All wetted surfaces shall be of materials suitable for contact with potable water and shall not leach out any organic or inorganic constituent that is not permitted by local or federal regulations.

B. Controls - Metering Pump SCADA Interface Control Panel

1. Metering pump control shall be achieved via a Nema 4X polycarbonate control panel suitable for interfacing with the plant SCADA system.

2. The SCADA Interface Panel Shall be configured with

a. Main circuit breaker (120VAC 1ph, 60hz power) suitable for the overall system load

b. Circuit breaker for each pump

c. H/O/A selector switches for each pump

d. P-16 digital process controllers for each pump for local 4-20mA control of the pump when the panel is in local mode

e. Alarm pilot lights for each pump

f. Misc terminals, relays as required

3. The SCADA Interface Panel shall offer the following inputs

a. Analog (4-20ma) speed command for each pump

b. Digital (on/off) run command for each pump

4. The SCADA Interface Panel shall offer the following outputs

a. Digital (on/off) run status for each pump

b. Digital (on/off) alarm status for each pump

c. Digital (on/off) in-remote status for each pump

d. Analog (4-20ma) speed indication for each pump

5. The panel shall be UL 508 rated and shall be fabricated by the chemical skid manufacturer and tested with the chemical feed skid prior to shipment to the site.

2.05 MANUFACTURER

A. Basis of design is equipment from ProMinent Fluid Controls, Inc.

B. Acceptable Manufacturers:

1. ProMinent Fluid Controls, Inc.

PART 3 - EXECUTION

3.01 INSTALLATION

A. Installation shall meet or exceed all applicable federal, state and local requirements, referenced standards and conform to codes and ordinances of authorities having jurisdiction.



B. The equipment shall be installed per the contract documents and manufacturer’s recommendations.

1. Provide a manufacturer’s certificate showing the equipment has been satisfactorily calibrated and tested.

2. An authorized manufacturer’s representative shall inspect the installation of all work furnished under this section and shall provide a certificate of proper installation.

3.02 MANUFACTURERS SERVICES

A. The manufacturer or manufacturers representative shall provide the services of an experienced, authorized representative the equipment specified herein who shall be present at the jobsite and/or classroom designated by the City/District for the minimum man-days listed for the services shown below time travel excluded

1. One man-day per site for inspection, start-up, functional testing and certificate of proper installation.

2. One man-day per site for training and commissioning.

3.03 WARRANTY

A. Chemical feed system shall be warranted for a period of 12 months from the date of start-up by authorized technician.

B. Damage due to makeup water particulates will not be considered as a warranty defect and will be the responsibility of the owner.

END OF SECTION

PAC System __________________________________________________________


PART 1. GENERAL

A. Dosing amount is for 3 MGD at 6 ppm (40 gr./minute). The injection

point is 125 feet horizontal and 20 feet Vertical.

B. The PAC System shall be as manufactured by Prominent Fluid

Controls or an engineer approved equal.

PART 2. SYSTEM DESCRIPTION

A. The system is designed to allow for the operator to empty bags

(approximate 25 kg per bag) into the manual bag dump station and

have the PAC feed into the wetting cone as needed. The amount of

PAC to be fed into the wetting cone shall be determined based on

the plant feedback (by others) and the system will automatically

adjust the PAC feed rate accordingly.

B. Once wetted the PAC slurry shall be conveyed using the supplied

hydro ejector system. PAC slurry make-down is initiated by a signal

from the Owner’s PLC. Upon receiving the signal, the water supply

shall open and the feeder shall start. The carbon and water will be

combined in the wetting cone and discharged by the hydro ejector

to the point of use. Should anything downstream of the wetting cone

clog, the water liquid level detector, located in the wetting cone, will

sense the liquid and in turn stop the screw feeder, close the water

inlet valve and signal an alarm. This alarm state will stay active until

such time as the operator presses the reset button.

C. It is to note that all equipment provided WITH THE EXCEPTION OF

THE CONTROL PANEL will be for Class II Division II classification.

The control panel will have to be installed on the outside wall beyond

the Class II Division II area. Use NEMA 4X Stainless Steel cabinet

to house the control panel.


PART 3 EQUIPMENT DESCRIPTION

3.1 It is a PAC injection system for small bags (25 kg). The system takes 25

kg bags of PAC and prepares a continuous solution.

A. Screw Feeder system complete with:

1. 304 SS feed multi screw with discharge and downspout;

2. 2.36” diameter screws;

3. 3 ft3 304 stainless steel hopper;

4. SS cover with inlet;

5. One electric vibrator;

6. One reducer with a A Hp 90VDC variable speed motor or 230V,

3Ø, 60 Hz;

7. Level Sensors;

8. Use 12 AWG wire size for the motor.

B. Wetting Cone and ejection system complete with:

1. 304 stainless steel wetting cone;

2. One water inlet connection;

3. One connection for overflow;

4. One flange for connection to the volumetric feeder outlet;

5. One connection to install the solution ejector;

6. One needle valve to adjust water flow at wetting cone inlet;

7. One solenoid valve for water inlet on/off operation;

8. One liquid conveying ejector for solution transfer.


C. Hydro-ejector

1. One brass construction hydro-ejector to transfer pre-wetted PAC

from cone to point of application. The' ejection come complete with:

a. Manually operated brass isolation ball valve

b. Solenoid valve

c. Inlet pressure Indicator

A. Control Panel to operate the system parameters. The control panel

will include:

1. Potentiometer for calibration purposes;

2. 4-20 mA input Card (4-20mA signal by others);

3. Selector switch for manual/off/Auto operation;

4. Reset button in case of system liquid overflow;

5. Pilot lights;

6. SCR or VFD for feed rate control.

It is to note that the control panels shall have to be installed outside

the Class Il Division II environment and will have to field wired by a

local certified electrician. Also, the 4-20mA control signal is by

others.

PART 4. MISCELLANEOUS REQUIREMENTS,

A. Utilities

1. Water: 140 liters/minute at 60 psi

2. Electricity: 3 kW

3. Instrument AIR: 1 CFM

B. The equipment provider shall provide 2 days of start-up assistance.


C Mechanical and electrical installation shall be provided by the

contractor.

END OF SECTION

FILTER CONTROL SYSTEM

FUNCTIONAL DESCRIPTION OF OPERATION

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CITY OF GREENUP

WATER TREATMENT PLANT

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE

I. FILTRATION OPERATION 2 II. BACKWASH OPERATION 2 III. BACKWASH ABORTS 3 IV. BACKWASH SEQUENCE 3-5 V. FILTER TO WASTE SEQUENCE 6 VI. PROCEDURE FOR CHANGING A SETPOINT 6 VII. FILTER AND BACKWASH SETPOINTS 7-8



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PAGE 2

I. Filtration Operation

Filter control stations are provided but are only operational in manual mode. The control stations have a selector switch for Open/Close valve control, a red pilot light to indicate open valve status, and a green pilot light for closed valve status. The Effluent Control valve has a potentiometer for valve flow setpoint, a green pilot light for open and a red pilot light for close indication. The valves are wired to normally closed limit switches. During valve travel, both open & closed pilot lights illuminate indicating butterfly valve travel. Control stations for equipment common to all filters (backwash pump, air scour blowers, backwash control and air vent valves) are provided. The Backwash Pump station has a stop/start selector switch, a red pilot light for running and a green pilot light for off indication. The Air Scour Blower stations have a stop/start selector switch, a red pilot light for running and a green pilot light for off indication. The Backwash Control valve station has a potentiometer for valve flow setpoint, a red pilot light for open and a green pilot light for close indication. The Air Vent valve has an open/hold/close selector switch, a red pilot light for open and a green pilot light for close indication

Effluent rate of flow control: The Effluent Control Valve potentiometer sets the filter rate of flow in manual filter operation. For manual flow control operation, place the “Mode” operation selector switch in the Manual position. Effluent flow is displayed on the Effluent Flow panel meter. The flow signal is from the direct feedback of the field-mounted rate of flow transmitter. The operator can manually adjust the setpoint via the potentiometer while observing the panel meter for the desired rate of flow. For automatic flow control the setpoint is defined by the PLC and flow control is a constant level setpoint via the sedimentation basin level transmitter. For automatic flow control operation, place the “Mode” operation selector switch in either the Semi-Auto or Automatic positions.

II. Backwash Operation

Backwash rate of flow control: In manual, the Backwash Pump start/stop and running/off status in the filter PLC is communicated via the network to the PLC-ELEC control panel. For manual flow control operation, place the “Mode” operation selector switch in the Manual position. Backwash flow is displayed on the Backwash Flow panel meter. The flow signal is from the direct feedback of the field-mounted rate of flow transmitter. The operator can manually adjust the setpoint via the Backwash Control Valve potentiometer while observing the panel meter for the desired rate of flow.



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PAGE 3

Manual backwash mode: The operator can manually backwash a filter by placing the “Mode” operation selector switch in the Manual position in conjunction with observing the valve position indicators, a backwashing sequence for proper washing is provided (See Section IV).

Semi-Automatic backwash mode (operator initiated): Semi-Automatic backwash operation occurs by placing the “Mode” operation selector switch in the Semi-Automatic switch position. The operator can initiate a backwash cycle by pressing the “Start Backwash” pushbutton. The PLC will then check certain permissives, such as another filter in backwash and valve limit switch status before allowing a backwash to continue. Automatic backwash mode: Automatic backwash operation occurs by placing the “Mode” operation selector switch in the Automatic switch position. Backwash occurs automatically upon a high loss of head, high effluent turbidity or filter runtime exceeded. The PLC will then check certain permissives, such as another filter in backwash and valve limit switch status before allowing a backwash to continue.

III. Backwash Aborts

If during a PLC controlled backwash, if a device fails to respond to a PLC command within a predetermined time, the backwash will abort. That is, all valves will close and all motors will stop. At this time, the “Backwash Aborted” pilot light will illuminate to alert the operator of this condition. The operator should attempt to diagnose and rectify the problem or, if the problem cannot be resolved, notify the supervisor on call. Once corrected, the operator will then reset the filter. To do so, turn the “Mode” switch to the “Manual” position. The operator must then decide whether to stay in “Manual” or return to the Automatic mode of operation.

NOTE TO OPERATORS: Before going to the “Manual” position after a backwash abort, make sure all the valve stations located on the lower section of the filter panel are in the correct positions to avoid any unwanted valve movement.

IV. Backwash Sequence During the automatic backwash modes, the FILTERING light turns off and the BACKWASHING light illuminates. The following backwash sequence should be followed whether in Manual, Semi-automatic, or Automatic mode (Note that in the automatic modes, the PLC shall execute these steps independent of operator intervention).



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PAGE 4

1. Close the INFLUENT valve. The limit switch CLOSED status will be required to proceed to the next step.

2. Drawdown the filter until the water level is about six inches above the media.

Drawdown level reached will be required to proceed to the next step.

3. Close the EFFLUENT valve. The limit switch CLOSED status will be required to proceed to the next step.

4. Open WASTE valve. The limit switch OPENED status will be required to

proceed to the next step.

5. Start the AIR SCOUR BLOWER. Air scour blower running status will be required to proceed to the next step.

6. Open the AIR INLET valve. The limit switch OPENED status will be

required to proceed to the next step.

7. Close the AIR VENT valve. The limit switch CLOSED status will be required to proceed to the next step.

8. Air scour for an operator adjustable time. The air scour timer time out

signal is required to proceed to the next step.

9. Start the BACKWASH PUMP. Backwash pump running status will be required to proceed to the next step.

10. Open the BACKWASH INLET valve. The limit switch OPENED status will

be required to proceed to the next step.

11. Ramp the BACKWASH CONTROL to 1st LOW RATE (water flow rate) of 5 GPM/FT². The backwash control valve needs to come off of the closed limit switch and is required to proceed to the next step.

12. Wash at low rate until AIR SCOUR CUTOFF LEVEL is reached.

The air scour cutoff level reached will be required to proceed to the next step.

13. Open AIR VENT valve. The limit switch opened status will be required to


14. Close AIR INLET valve. The limit switch CLOSED status will be required to proceed to the next step.

15. Stop AIR SCOUR BLOWER. Air scour blower OFF status will be required



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to proceed to the next step.

16. Backwash at 1st LOW RATE. The backwash 1st low rate timer times out signal is required to proceed to the next step

17. Ramp up the BACKWASH CONTROL valve to HIGH RATE 20 GPM/FT². The HIGH RATE transports the solids out of the media.

18. Backwash is timing at HIGH RATE for operator adjustable time period to

remove trapped impurities. The Backwash Extend illuminated pushbutton flashes allowing the operator to extend the high backwash rate time for an additional 2 minutes. If the operator pushes the flashing Backwash Extend pushbutton, the PLC acknowledges by illuminating steadily. The backwash high rate timer times out is required to proceed to the next step.

19. Ramp down the BACKWASH CONTROL valve to 2nd LOW RATE.

20. Backwash at 2nd LOW RATE for a one (1) minute period (minimum). The

backwash 2nd low rate timer times out signal is required to proceed to the next step.

21. Close WASTE valve. The limit switch CLOSED status will be required to


22. Filter level is rising. Refill level reached or 2nd low rate time complete required to proceed to the next step.

23. Close the BACKWASH INLET valve. The limit switch CLOSED status will

be required to proceed to the next step.

24. Close BACKWASH CONTROL valve. The limit switch CLOSED status will be required to proceed to the next step.

25. Stop BACKWASH PUMP. Backwash pump OFF status will be required to


26. Filter in STANDBY MODE for an operator adjustable time. This step can be skipped by setting the STANDBY MODE time to zero.

27. Open INFLUENT valve. The limit switch OPENED status will be required

to proceed to the next step.



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V. Filter to Waste Sequence

1. Confirm the INFLUENT valve is open. The limit switch OPENED status will be required to proceed to the next step.

2. Open the FILTER TO WASTE valve upon receipt of the INFLUENT valve opened signal. This allows initial, post-wash effluent to transport to waste rather than to the clearwell. The limit switch OPENED status will be required to proceed to the next step.

3. Filter rewashing timer (default of 10 minutes). The rewashing timer times out is required to proceed to the next step.

4. Close the FILTER TO WASTE valve. The limit switch CLOSED status will be required to proceed to the next step.

5. Enable EFFLUENT valve and return to filter service (effluent valve needs to come off of the closed position).

VI. Procedure for changing a Setpoint from the OIT (Console #1 Only)

Function keys on the Magelis Operator Interface Terminal (OIT): The F1 key is selected to display a banner message. Use this key to return from changing any setpoints. The F2 key is selected to access setpoint information in the PLC. The current value is displayed. Scroll through the operator adjustable setpoint pages for the desired parameter using the right arrow key or the F12 key to go to the next item on the list. Use the left arrow key or the F11 key to go to the previous item on the list. Once the setpoint parameter is located, press the ‘MOD’ key to modify the value of the parameter, use the numeric keypad to change the current value to the new value, and press the ‘Enter’ key. The F2 key includes access to the adjustable setpoint parameters in the PLC, listed in section VII. When F2 is depressed, the first parameter is displayed on the screen, along with its setpoint value. After the status of a value has been checked or changed, use the F1 key to return to the main banner screen. The program will then display the filter runtimes automatically.

The F3 key is selected to access the Setpoint Select register. If the operator needs to set all adjustable setpoint parameters back to the factory default values, a ‘0’ needs to be entered into this register. The Setpoints are also available on the Leopold workstation computer.



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VII. Filter and Backwash Setpoints

Description Default Value

Filter Runtime (Enter in Hours)

96 Hours

High Filter Loss of Head (Enter in Feet)

5 Feet

Valve Malfunction Time (Enter in Seconds)

120 Seconds

1st Low Backwash Rate of Flow (Enter in Gallons per Minute per Square Feet)

5 GPM/SQ.FT.

Air Scour Alone Time (Enter in Seconds)

60 Seconds

High Backwash Flow (Enter in Gallons per Minute per Square Feet)

20 GPM/SQ.FT.

Time at High Rate (Enter in Seconds)

300 Seconds

Extend High Backwash Time (Enter in Seconds)

120 Seconds

2nd Low Rate of Flow (Enter in Gallons per Minute per Square Feet)

5 GPM/SQ.FT.

Time at 2nd Low Backwash Rate (Enter in Seconds)

60 Seconds

Filter Low Level (Enter in Inches)

2 Inches

Filter Draw Down Level

(Enter in Inches)

6 Inches

Filter Air Scour Cut-off Level (Enter in Inches)

30 Inches



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Description Default Value

Filter High Level (Enter in Inches)

84 Inches

Filter Refill Level (Enter in Inches)

60 Inches

Alarm Duration Time for: Loss of Head (Enter in Minutes)

20 Minutes

Draw Down Flow Rate (Enter in Gallons per Minute per Square Feet)

5 GPM/SQ.FT.

Draw Down Abort Time (Enter in Minutes)

30 Minutes

Rewash Time (Enter in Minutes)

10 Minutes

Filter Area

(Enter in Sq/Ft)

256 Sq/Ft

Influent Channel Low Level

(Enter in Inches)

2 inches

Setpoint select register

Reset = 0

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