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NC-2009 WEp1:Water Use Reduction—20% Reduction

How to document a pre-rinse spray valve in the form online????

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Robert Robison
LEED Manager
Robison Engineering
LEEDuser Basic Member
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Review comments have requested that I include the pre-rinse spray valve in the hotel kitchen in my water usage calculations. However, I do not see a category for this fixture type in the Fixture Family pull down menu of Table WEp1-4. Any thoughts on how the reviewers would like to see me document this fixture?

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Mon, 09/17/2012 - 15:01

Hi Robert, It depends on what version of the WEp1 Form you are utilizing. The LEED Reference Guide for Green Building Design and Construction, 2009 Edition (Updated June 2010) 11/1/2011 Addenda clarifies that for projects with commercial pre‐rinse spray valves, there is no longer a baseline performance standard from which to claim savings; rather, the prerequisite requires only that the flow rate comply with the ASME A112.18.1 standard of 1.6 gpm or less. Older Forms do show pre-rinse spray valves in Table WEp1-4. Updated forms (after the above referenced Addenda) show a check box asking if pre-rise spray valves are included in the project, and if so, confirming that they are 1.6 gpm or less. Hope helpful!

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