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Our plumbing fixtures are served, in part, by nonpotable water. How do we account for this?

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NC-v4 WEc2:Indoor water use reduction

Variable Flow Showerhead

My project is specifying shower-heads that allow the user to adjust the flow rate between 0.5 GPM, 1.0 GPM, and 1.5 GPM. Can I account for savings from this fixture or do I have to use the highest flow rate when calculating my indoor water use reduction?

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Joanna Switzer
Sustainability Project Manager
Atkins
LEEDuser Basic Member
59 thumbs up

Tue, 02/13/2018 - 21:37

Hi Risto, Although LEED allows water use (gpf) of toilets to be averaged to consider the distinct default partial/full uses (using the official WE use calculation for dual flush toilets) , flow fixtures typically have to be calculated using the worst case/highest flow rate the fixture offers. I am not aware of any exception to this rule.

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