See all forum discussions about NC-2009 WEp1
 Subscribe to new posts about NC-2009 WEp1 Post a new question aboutNC-2009 WEp1
See LEEDuser’s guidance on NC-2009 WEp1»
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?

View answers »

Forum discussion

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

WeP1 for LEED CI

Profile picture for user lindadelair
Linda Delair
Owner
Sustainable Business & Residential Consultant
LEEDuser Basic Member
13 thumbs up

I have a cut sheet on a faucet the building owners want to use in the public lavatories in their 3,5000 sq. ft.dental building. They and their staff are the only tenants. The psi and the gpm are high - 87 psi and 3 gpm. Can an aerator be used ito reduce the water flow? I have looked everywhere I can think of online and I’m coming up blank. Thank you for your help. Linda

3
Post a reply

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Default Avatar
Paul Telford
Mechanical Engineer
Mazzetti Nash Lipsey Burch
LEEDuser Basic Member
6 thumbs up

Tue, 12/20/2011 - 23:42

Yes an aerator can be used to reduce the water flow. The only catch is, if a lower flow aerator is manufactured for that specific faucet. I'd initially consult the faucet manufacturer. If that doesn't work, you can circumvent them and go to the aerator manufacturer, assuming that's a separate company. Neoperl (http://www.neoperl.com/default.aspx) is a large supplier to domestic faucet manufacturers and often times can tell you what aerators will fit what faucets. Alternately, you could consider reducing the pressure of your whole system and naturally your flow will reduce.
Profile picture for user jweiss
Jonathan Weiss
Jacobs Buildings & Infrastructure
LEEDuser Premium Member
140 thumbs up

Tue, 01/10/2012 - 21:36

Just a caution that reducing the pressure is not an option for LEED calculations - the LEED calculations are based on a baseline pressure. The pressure will affect the actual water savings, but LEED has been pretty consistent that the calcs need to have the same pressure.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.