Water Efficiency Flashcards
What percentage of water usage does buildings account for
12%
What are the three components for water effeciency
indoor water use
outdoor water use
process water
What is the standard for all we prereq. and credits
Energy Policy Act of 1992 (EPAct)
What percentage less water does a low flow water closet use compared to a conventional one
30%
Examples of flush fixtures
toilets and urinals
How are flush fixtures measured
gallons per flush (gpf)
Examples of flow fixtures
sink faucets, shower heads, and aerators
How are flow fixtures measured
gallons per minute (gpm)
LEED buildings must demand at least what percent indoor water as compared to conventionally designed buildings
20%
Sources of blackwater
water from: toilets, urinals, kitchen sinks, showers and bathtubs
Sources of gray water
non-potable and captured rain water
What are the three strategies for indoor water effeciency
- Use efficient plumbing fixtures
- Use non-potable water for flush functions
- Install sub-meters to track consumption
What accounts for the primary use of outdoor water
Irrigating Landscaping
How is the amount of water delivered by sprinkler heads measured
GPM
What are the five strategies for efficient outdoor water use
- implement native and adopted plants
- use xeriscaping
- specify high-efficiency irrigation systems
- Use non-potable water
- Install sub-meters
