Green Plumbing

Category - Caring for Our Water

Each of the following is a type of water-efficient urinal, except:
  1. High-efficiency urinal (HEU)
  2. Low water volume urinal
  3. Minimal discharge urinal
  4. Waterless urinal
Explanation
Answer: C - A minimal discharge urinal is not a type of water-efficient urinal. HEUs use 0.5 gallons or less. Low water volume urinals flush on about one pint of water and are low-maintenance. Waterless urinals have both their supporters and their detractors.
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