Water Efficiency Flashcards
US Geological Survey estimates buildings are account for what % of total water use?
12%
Energy Policy Act of 1992 (EPAct 1992) as the standard for WE prerequisites and credits:
Project teams are encouraged to select EPA WaterSense and ENERGY STAR products
Baseline vs Design
Amount of water a conventional design would use as compared to the design case
Flow fixture
Sink faucet, showerhead, aerators. Measured in gallons per minute
Flush fixture
Toilets, urinals.
Measured in gallons per flush
What is processes water?
Water used for building system, such as heating and cooling air. Chillers, cooling towers, boilers, washing machines, ice machines, dishwashers
3 strategies to reduce Indoor Water Use:
- Install efficient plumbing fixtures
- Use nonpotable water for flush
- Install submeters
What is Graywater?
Wastewater from showers, bathtubs, lavatories, and washing machines. Has not come into contact with toilet waste according to International Plumbing Code (IPC)
5 strategies to reduce Outdoor Water Use:
- Implement native and adaptive plants
- Use xeriscaping - combining native planting with soil improvements and efficient irrigation system
- Specify high efficiency irrigation system
- Use nonpotable water
- Install submeter
Types of water uses in Water Efficiency category
- Indoor water use
2. Outdoor water use