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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.

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

PSI for faucets and showers

Hi, Can anyone please advise on the following; Do shower flow rates need to be calculated at 80 psi and installed at 80 psi? The same for for faucets, do flow rates need to be calculated at 60 psi and then installed at 60 psi? Thank you.

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Wed, 12/30/2015 - 21:20

Hi Francis, The psi (based on 60 psi for lavs and 80 psi for showers) is how the industry/manufacturers calculate the GPM flow rate for their fixtures. The calculations must be performed using GPM rates based on these pressures, but there is no pressure requirement for installation.

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