Plumbing Green Professional Building Skills Training Program
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PlumbingGreen Professional Building Skills Training Program
COURSE OBJECTIVES:At the end of this course you will:Page 8Understand how and why sustainability is important to plumbers and their work.Understand the water-saving and energy efficiency principles used in new green systems.Understand how green and conventional technologies, products, and installation practices differ.
GPRO Certificate HoldersPage 3Plumbing
A Green BuildingA green building is designed, constructed and maintained to minimize adverse environmental impacts and reduce energy and water consumption, while contributing to the health and productivity of both workers during construction and occupants after construction. A key component is consideration of the building's impacts and performance over its entire life.Page 7
Page 9Why Green Plumbing Matters1
SustainabilitySustainability: A way of living and working that meets the needs of the present without compromising the ability of future generations to meet their own needs.
Benefits of Green PlumbingConserving water means:Cost savings related to water and wastewater treatmentReduced energy consumption from pumping and heating less water
Benefits of Green PlumbingJobs EconomyHealthEnvironmentPage 9
Natural Hydrologic CycleWater is cleaned and replaced by the natural hydrologic cycle
A New Way of Thinking About WaterProtect the Health of the Nation: Clean water in, dirty water outPreserve safety of water supplyAlso:Water conservationNew sources of water from rainwater harvesting, greywater
Threats To Our Water Supply Population increasePollutionFarming & ForestryPavingWater shortagesPage 11
What is the purpose of green building? How does plumbing play a critical role?How do the four primary benefits of green building relate to the plumbing industry?Why are our current water use practices not sustainable?How do humans fit into the hydrologic cycle?Describe the new hydrological cycle.
Page 12Sustainability inPlumbing Systems2
What Makes a Plumbing System Sustainable?Multiple water savings and reuse elements are integrated to create a coordinated approach to water-use reduction.Page 12
Page 14Where is Green Plumbing in a Building?Whole-Building Integration
Page 12Reducing water consumptionEnergy efficiencyIndoor air qualityManaging construction & demolition wasteCommissioningLEED building certificationRetrofitting existing buildingsMaintenance
What are the Big Issues for Green Plumbers?
Page 15Goal: To protect our nation's water supply by promoting water efficiency and enhancing the market for water-efficient products, programs, and practicesDeveloped by U.S. EPA in 200620% more efficient than standard fixtures and appliancesHET toilets must pass rigorous waste removal performance test.WaterSenseHow Do We Measure Sustainability in Plumbing - WaterSense
How Do We Measure Sustainability in Plumbing ENERGY STARENERGY STARGoal: Protect the environment through energy-efficient products and practicesU.S. EPA & U.S. DOEDeveloped in 1992Covers: water heaters, dishwashers, washing machines, geothermal heat pumps, boilersENERGY STAR products that use water use less water than standard products, sometimes much less.
How Do We Measure Sustainability in Plumbing - LEEDLEEDPrimary LEED credit categories: Water Efficiency (WE)Sustainable Sites (SS) Energy & Atmosphere (EA) Green buildings can achieve up to 10 credits through significant reductions in their use of potable water, wastewater treatment, energy savings, and reducing on-site run-off pollution. Page 15
Proximity Hotel, Greensboro, NC
LEED Platinum Luxury Hotel:
39% less energy use34% less water useLow-ow toilets that use 1.2 gallons per ush, waterless urinals, and low-ow faucets all contribute to water savings. Solar thermal panels on the roof provide 60 percent of the hotels water heating needsCASE STUDYPage 15
How does the whole-building approach apply to sustainable plumbing systems?What are the issues that a plumber might be involved with on a green job?What are the issues that a plumber might encounter when retrofitting an existing building?What plumbing products does ENERGY STAR certify?What are the goals and strategies for the plumbing-related LEED new construction credits?
Page 18Reducing End-Use Demand for Water and Energy3
High Efficiency Fixtures and Appliances Conserve water Reduce depletion of our valuable potable water resources helps maintain healthy aquatic environments. Save on water and sewer billsSave on energy billsPage 18High Efficiency Fixtures and Appliances
Page 19Typical water use in United States:How Much Water Do We Use?Commercial buildingsHomes
How many gallons of potable water does the average 3-person household use per day?POP QUIZ:
69.3 x 3 = 207.9 gallonsPOP QUIZ:Go to http://www.epa.gov/watersense/our_water/be_the_change.html
Baseline and Improved Water Usage for Common Fixtures Page 20Baseline vs. Improved Water Usage
Unnecessarily large flow rates waste water and energy!
Federal Guidelines:Lavs, Kitchen Faucets & Aerators Max 2.2 gpmPublic Metering Faucets Max 0.25 gal/cycle (gpc)Private Bathrooms (WaterSense Low-flow)1.5 gpmPublic Bathrooms0.5 gpmPage 20Faucets
Tempered faucets automatically mix hot and cold water.Have circulating hot water as close to faucet as possible or install heat cable.
Page 20Tempered Faucets and Circulating Pipes
Changing to a low-flowshowerhead has agreat payback!
Federal Guidelines:Showerheads (80 psi):Max 2.5 gpmLow Flow Showerheads (60 psi):Max 2.2 gpmWaterSense Showerheads:Max 2.0 gpmUltra Low Flow Showerheads:0.8 1.5 gpm
To unclog showerheads andImprove flow, immerse in vinegar to clean out scale and deposits.
No bleach or chemicals!Page 21Showerhead Maintenance
Toilet replacements can be a huge opportunity for water savings.
Federal Guidelines:Residential toiletsMax 1.6 gpfCommercial toilets:Max 1.6 gpf
1.6 gpf toilets are called low-consumption (LC) toiletsPage 23Toilets
Great strides have been made in performance ofLC and HET.
High Efficiency Toilet (HET)Max 1.28 gpf
Page 23High Efficiency Toilets (HET)
Two different levels of flushing to clear the bowl.
Large FlushMax 1.6 gpfSmall FlushMax 1.1 gpf
Page 24Dual Flush Toilets
Drain-line carry isthe distance that water can float or carry solids down a horizontal drain line
Page 24Drain-Line Carry
High Efficiency Fixtures Waterless and high-efficiency urinals (HEUs) Lower-flow faucets
Greywater systems Reduce waste water in building sanitary drainage systems
Current ASME Standards require a toilet to carry solids a distance of 40 horizontallyPage 24Reducing Water in Waste Systems
200 Market St., Portland OR
Water use reduction 32%Low-flow and efficient water fixtures. Installed two pressurized water storage tanks on the roof, allowing the pumps to be turned off nights and weekends instead of running city water pumps nonstop to maintain water pressure on higher floors.Page 18CASE STUDY
What is the relationship between high-efficiency fixtures and appliances and protecting the environment?What are the issues associated with tempered faucets? What are strategies that make tempered faucets more efficient?What are the differences between low-consumption (LC) toilets, high-efficiency toilets (HETs), and dual flush toilets?What is the concern with high efficiency fixtures and drain-line carry?What new technology exists that contributes to landscape irrigation efficiency? Why is efficiency in landscape irrigation important?
Improving Water Distribution Systems4Page 31
Water is distributed in a network of pipes throughout the building.
The design and maintenance of this system of piping can have a dramatic impact on water and energy consumption.Page 32Water Distribution in Buildings
Insulate all accessible piping Hot water: heat should not dissipate
Cold water: prevent condensation in hidden cavities and cut off a thermal sink
Be aware of pipe insulation requirements!
Page 32Pipe Insulation
Have to wait for the water to heat up while its running down the drain..
Page 32With trunk-and-branch installation method cold water brought to water-heating equipment before being distributed to fixtures and appliancesWaste of Potable Water with Hot Water Usage
How much water is wasted?
Average American home = 2.6 residents Annual water waste waiting for hot water = 10,000 gallons
50 million American households = 500 billion gallons of potable water waste annually
Page 32Waste of Potable Water with Hot Water Usage
In a typical American home, more than 10,000 gallons of water per year may be wasted while residents wait for hot water to arrive at plumbing fixtures
What can we do?
Page 32Waste of Potable Water with Hot Water Usage
Use piping systems that re-circulate hot water back to water heating equipment
Dedicated return line from the fixtures furthest from the water heating equipment
Important when using low-flow fixtures without recirculation, wait for hot water is increased.
Page 32Hot Water Distribution Piping:Larger Buildings