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CS-2009 WEp1:Water Use Reduction

Shower in Units of gpc or USgpm in Form WEp1

Hello, a question concerning WEp1 Could I use the flow rate in Units of gallons per cycle (gpc) instead of USgallons per minute (USgpm) for the Shower as Fixture Family in Table WEp1-4.Flow Fixture Data? The shower has a flow rate of 10 lpm or 2.64 USgpm (from product data sheet),that is more that the limit 2.50Usgpm. Can I convert the flow rate in gallons per cycle (gpc), which I mean 2,50 x (12/60)= 0.50 gpc (10 liter/minute)? Or is the conversion applicable only to lavatory faucet? Has anyone had a similar experience with Units for a shower as Fixture Family form WEp1? Thank you in advance.

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Thu, 01/21/2016 - 14:46

Hello Panagiota, You should utilize the 2.64 gpm flow rate for your calculations. I am not aware of project teams being able to convert the shower fixture from lpm to gpc. While the flow rate is unfortunately above the 2.5 gpm baseline, note that the total water use reduction (in aggregate, for all combined flush/flow fixtures) must achieve a min. 20% reduction.

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