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FAQs about WEp1 :

We provided new showers in our project to comply with the alternative transportation credit. Should they be considered in WEp1 calculations?

Can you explain the 12-second duration for metering faucets?

Can I use a nonpotable water source to contribute to WEp1 compliance?

Our project does not have any eligible water fixtures in the project boundary. Can we comply with WEp1?

We are having trouble finding EPAct-compliant fixtures. Is that a problem?

Where can I find a clear meaning of "public" and "private" as relevant to lavatory faucets?

Our project is a factory with historically a 95% male workforce. The restroom design accounts for this. Can I argue that the male/female gender ratio is different than 50/50?

Are shower duration controls an acceptable water-saving strategy?

Can I include process water savings in order to earn an Exemplary Performance point?

Will the reviewers accept a spreadsheet as a plumbing fixture schedule in lieu of the plans from the Construction Documents?

In LEED review comments I've been referred to the Water Use Reduction Additional Guidance document. I didn't know this was a required reference document.

Should I include bar sinks? What about mop sinks or janitor sinks? Swimming pools? Safety showers? Bidets? Tub spouts?

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Forum discussion

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

WEp1 - Children's Water Closets Water Use

Ross Spiegel

Principal

Ross G. Spiegel Architect

LEEDuser Basic Member

9 thumbs up

November 30, 2011

I am working on an elementary school project with flush valve type water closets sized for young children. They are smaller than adult-sized water closets to make it easier for young children to use. I have reviewed available products from several plumbing fixture manufacturers and they only offer these fixtures in 1.6 gpf models. I cannot find anything in the LEED Reference Guide or in the LEED addenda that addresses a higher flush rate for this type of water closet. Has anyone confronted this situation before? And if so how did you resolve it?

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Seema Pandya

Sustainability Consultant

SLP

LEEDuser Premium Member

97 thumbs up

Wed, 11/30/2011 - 16:47

I saw some low flush HEP options by Zurn for K-12 1.28gpf http://www.zurn.com/pages/catalog.asp?ProductGroupID=147&OperationID=19

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