Forum discussion
NC-2009 WEp1: Water Use Reduction—20% Reduction
In a school locker room, I have 1 accessible shower stall and 2 non-accessible showers. It just so happens that the accessible shower head is 1.5 gpm and the non-accessible shower head is 1.6 gpm. Is there a way to take into account both of these gpms or should I just put 1.6 gpm for the installed flow rate?
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Erica Downs
LEED ConsultantThe Green Engineer
254 thumbs up
October 4, 2010 - 11:24 am
I would save yourself a letter template-induced headache and just use the 1.6gpm, unless using the 1.5 makes a huge difference, but I doubt it will.
sara theodore
10 thumbs up
October 4, 2010 - 11:29 am
Thats what I figured. Just thought I'd check. Did you figure out the prerinse spray valve or the food service hand wash sinks? I had the same questions and was waiting to see if anyone answered you.
Erica Downs
LEED ConsultantThe Green Engineer
254 thumbs up
October 4, 2010 - 12:13 pm
I found a document from DOE that says a 1.6gpm spray valve is used for 22 seconds per plate. It also says, "The pre-rinse spray valve would be used an average of four hours per day, 365 days per year which is typical in Veteran’s Hospitals and federal prisons, and on military bases."
The document is here if you want to use it: http://www1.eere.energy.gov/femp/pdfs/prerinsenozzle.pdf
That's the best guidance I've found so far. But I'd still love to hear what others have done, or if anyone has recevied feedback from USGBC on this issue.
Erica Downs
LEED ConsultantThe Green Engineer
254 thumbs up
March 16, 2011 - 3:24 pm
The link above is no longer valid, but the same information can be found here:
http://www1.eere.energy.gov/femp/technologies/eep_low-flow_valves.html#t...