Water use reduction - building equipment | U.S. Green Building Council
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LEED BD+C: Healthcare | v3 - LEED 2009

Water use reduction - building equipment

WEc4.1 | Possible 1 point


To reduce or eliminate the use of potable water for non-potable process use in building system equipment.


  • Install only dry vacuum pumps for central vacuum systems and all other systems except for vacuum systems for sterilizing, which may use oil-lubricated liquid ring pumps.
  • Do not install venturi vacuum systems for sterilizers. For air compressors, install either air cooling or closed-loop cooling, such as a cooling tower or chilled water system.
  • Large frame X-ray processors and/or developers of more than 150 mm (six inches) in length or width shall use film processor water recycling units. Smaller X-ray equipment, such as a dental X-ray film processor, is exempt from this requirement


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