Produced by: Zwembad BVBA Industrieweg 9 3190 Boortmeerbeek Belgium www.harmopool.eu

Manual SFERA Bobin Sand Filter

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Table of content Product description ................................................................................................................................ 2

Assembly and installation ...................................................................................................................... 3

Preparation ........................................................................................................................................ 3

Installation ......................................................................................................................................... 5

Starting the filter kit ............................................................................................................................. 10

Maintenance ........................................................................................................................................ 11

Backwashing ..................................................................................................................................... 11

Using the valve ..................................................................................................................................... 12

FAQ ....................................................................................................................................................... 13

Appendices ........................................................................................................................................... 14

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Product description These instructions contain important information regarding safety. Please read the instructions carefully before installing and using the filter. The filter is made to last for years with minimal maintenance, provided that the installation and use takes place according to instructions in this document. Product specifications

Product code ZFZX1130-P ZFZX1140-P ZFZX1150-P ZFZX1160-P

Valve 6-way 6-way 6-way 6-way

Pump 4 m³/h 6 m³/h 9 m³/h 14 m³/h

Filter media (kg) 50 50 75 75

Diameter (mm) 425 425 475 550

Power (kW) 0.25 0.37 0.5 0.75

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Assembly and installation

Preparation

1. Check if the packaging is in good condition

2. Carefully unpack the filter

3. Check if everything is in the box

○ Filter body ○ Pump ○ Foot for the pump ○ Connection hoses ○ Valve and accessories to install ○ Connections

4. Install the filter on horizontal soil. Take care having enough space around the filter to be able to

execute an easy maintenance.

5. Use sand of this grain size: 0,4 - 0,8 mm.

6. Check whether all internal parts are in good condition and are properly attached before you fill the body.

7. Fill half the body with water before you fill it with sand or glass beads. Only then, the body is

filled gradually.

8. Once the body is filled with the right amount of sand or glass beads, the top part of the body has to be cleaned thoroughly at the level of the filter valve.

9. Make sure all parts are dry. Apply a little bit of grease to the sealing ring and attach the valve to

the filter body.

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Attention!

○ Air inside the filter body or a malfunction of the valve can damage the valve or the installation.

○ Place the valve in such a way that the hoses can be connected properly.

○ Connect the filter to the pump and use Teflon for a proper seal.

○ The filter body can rupture or explode at a pressure of 2 bar. The maximal operating

pressure is around 1.5 bar. Therefore, never install a pump which puts more than 1.3 bar of pressure on the filter body. Switch off the pump if the pressure rises above 1.5 bar.

○ Never place the valve on the outlet of the filter/pump installation. A closed valve can cause

the filter to explode.

○ Always keep chemicals at least 5 meters removed from the pump and filter. The chemical fumes of these products can rust the parts causing damage to the valve, pump and filter.

○ The electrical installation of the pumps has to take place according to local standards. The distance between the swimming pool and the pump installation has to be at least 4 meters.

○ For safety a 30 mA differential plug has to be present. The filter kit is used exclusively with swimming pools.

○ This filter combination works under pressure. When it isn’t assembled properly or if air is present in the filter circuits, serious injuries can be the result.

○ Regularly check whether the valve and the pipes are in good condition. Never use this installation at pressure higher than 1.5 bar.

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Installation

1. Assemble the body to the foot of the pump

2. Glue the collector to the distributor. Roughen the PVC and use degreaser for a better adhesion. Use a sufficient amount of glue.

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3. Assemble 2 distribution rods to the distributor and put everything inside the filter body.

4. Now assemble the rest of the distributor rods and put the distributor on the bottom. Fill half

the filter body with water. After, fill the other half with sand or glass beads without sand or let glass beads fall in the PVC-pipe. Make sure that the PVC-pipe is still in its straight up state.

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5. Put the o-ring on the valve 6. Put the valve on the filter body and make sure the PVC-pipe is inside. Assemble the clamp and

tighten the valve properly.

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7. Assemble the pressure gauge to the side of the valve.

8. Insert the screws through the holes of the foot of the pump and screw the pump on it.

This foot is used for multiple models. With some models the screws don’t fit on the pump. By drilling additional holes in the foot, that problem is resolved.

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9. Saw the included flexible PVC-pipe in 2 adequate pieces. Glue these 2 pieces of PVC-pipe into an elbow of 90°. Screw the included connection of 50 mm to the pump connection of the valve. Use Teflon for an optimal sealing. Glue 1 end of the pipe into the connection of 50 mm and the other end into the connection with swivel to assemble to the pump. Screw the connection with swivel onto the pump. Use Teflon for an optimal sealing. The end result looks like this.

*With the right PVC-pieces, connections to other diameters are always possible.

10. The electrical installation can differ. Therefore there is no plug on the cable of the pump.

Depending on local legislation, you may use a standard plug, a differential plug or a direct conection to the fuse box to provide the installation of power with a socket. We recommend to use a differential plug for a safer installation.

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Starting the filter kit 1. Clean the swimming pool before starting the kit 2. Check whether the filter body and the pre-filtration unit of the pump are filled with water. 3. Check whether the valve of the filter body is installed properly and make sure all air is out of the

pump. 4. Switch off the pump and change the position of the valve (switch off the pump every time

before you change the position of the valve). 5. Start the pump. 6. Filtration has begun. Check whether water is entering the swimming pool.

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Maintenance

The filtering plays an important part in the proper functioning of the swimming pool. The filter installation will last a long time if it is maintained correctly. Therefore respect following advice: If you want to perform labours inside the body, first remove the sand before removing the valve. Attention ! ○ The filter body operates under pressure. Never start working on the filter if it is still under pressure.

○ Filtering too little can cause turbid and green water. Never use air or a compromised gas. This can

cause the filter body to explode.

○ A new filter can still contain fabrication impurities. It is recommended to clean the filter 48 hours after commissioning. 2. Backwashing too often can decrease the filter installation.

○ Read the pressure off of the barometer. This upstart pressure is called the initial pressure. In most cases the initial pressure is between 0.4 and 1 bar. This pressure depends on the power of the pump, diameter of the filter body, lenght of the pipes, bends the pipes make and the cleanliness of the sand. The initial pressure can never be too low. If all your devices work and are connected correctly and your initial pressure is lower than 0.4 bar, you have provided a sublime installation.

○ Sand has to be replaced every 4 years, glass beads every 6 years

Backwashing

1. Switch the valve from position after you have stopped the pump.

2. Verify whether the conduits are not pinched or in a knot and put the valve in ‘Backwash’ mode

3. Start the pump

4. Backwash the filter 2 to 3.5 minutes

5. Stop the pump and put the valve in ‘Rinse’ mode

6. Start the pump and let it run for approximately 30 seconds

7. Stop the pump and put the valve on ‘Filter’

8. Restart the pump. The installation is now ready to do its job

Winter-treatment In countries where the temperatures go below zero, it is necessary to perform a winter-treatment: Backwash the filter 1. Stop the pump and put the valve on ‘Closed’ 2. Open the purge valve beneath at the bottom of the body 3. Let all the water flow out of the filter body

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Using the valve Filter Regularly check the pressure gauge. If your initial pressure has increased by 0.2 bar, it is time to backwash.

Closed

The valve is closed, communication with the pump is interrupted. You can now open the lid of the pre-filtration unit of the pump.

Recirculation In this position the water doesn’t pass through the filter body and flows directly to the swimming pool.

Use this position when you have put products in the water, for a better distribution of the products.

Backwash

Thanks to the filter medium (sand or glass beads), impurities remain inside the filter body. The more impurities inside the body, the higher the pressure and the less well the water circulates. When your initial pressure has increased by 0.2 bar it is time to backwash. The contaminated water is drained to the gutter. First rinse the pump once again with the Rinse-mode before filtering again.

Empty In this position the valve sends the swimming pool water directly to the gutter. This mode is used to empty the pool. Rinse After every backwash it is important that the filter medium is compressed. Put the valve to ‘Rinse’ and start the pump again for 1 minute. Thereafter, put the valve in the filter position and your installation is ready again for an efficient filtration of the swimming pool water.

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FAQ

Problem Cause Solution Flow too low The basket of the pump (pre-

filtration unit) is full Clean the filter basket

The pump runs in the reverse direction

Check the conduits of the pump

The system sucks too little water

The pipes at the inlet are clogged or partially clogged

Clean the pipes of the inlet of the pump

The pressure quickly becomes too high during filtering

The pH is too high (turbid water)

Decrease the Ph (add Ph min)

Too little chlorine Add chlorine The pressure changes too much

The pump draws air Check the density of the hydraulic connections

The suction valve is half closed Fully open the suction valve

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Appendices

SFERA 97505 - 97506

REF BENAMING DENOMINATION DESIGNATION BESCHREIBUNG DENOMINACION DENOMINAZIONE

A FILTERVAT FILTRE FILTER BODY FILTERKÖPËR CUERPO FILTRO CORPO FILTRO

B PURGE PURGE PURGUE ABWASSER PURGA PURGA

C DICHTING JOINT TORIQUE "O" RING "O" RING JUNTA TORICA "O" RING

D MANOMETER MANOMETRE PRESSURE JAUGE DRUCKMESSER MANOMETRO MANOMETRO

E KRAAN VANNE VALVE WECHVENTIL VALVULA VALVOLA

F HALSKLEM BRIDE FLANGE FLANSH BRIDA FLANGIA

G COLLECTOR COLLECTEUR COLLECTOR SAMMENLBEHÄLT

ER COLECTOR COLLECTORE

H VERDEELARM BRAS ARM VERTEILARM BRAZO BRACCIO

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SFERA 97507 - 97508

REF BENAMING DENOMINATION DESIGNATION BESCHREIBUNG DENOMINACION DENOMINAZIONE

A FILTERVAT FILTRE FILTER BODY FILTERKÖPËR CUERPO FILTRO CORPO FILTRO

B PURGE PURGE PURGUE ABWASSER PURGA PURGA

C DICHTING JOINT TORIQUE "O" RING "O" RING JUNTA TORICA "O" RING

D MANOMETER MANOMETRE PRESSURE JAUGE DRUCKMESSER MANOMETRO MANOMETRO

E KRAAN VANNE VALVE WECHVENTIL VALVULA VALVOLA

F HALSKLEM BRIDE FLANGE FLANSH BRIDA FLANGIA

G COLLECTOR COLLECTEUR COLLECTOR SAMMENLBEHÄLT

ER COLECTOR COLLECTORE

H VERDEELARM BRAS ARM VERTEILARM BRAZO BRACCIO