Question

Hi Redy,

I have a project with the same design conditions you described. We have met the requirement through exclusive use of 0.8gpf toilets and 0.25gpf urinals, which use 50%+ less water than their EPAct 2005 code compliant counterparts (1.6gpf toilets and 1.0gpf urinals). I am nearly ready to complete my formal documentation.

By chance have you undergone your certification review of Pilot 10- if so, do you have any lessons learned you can share?

Thanks in advance!

Hi Redy and Joanna,
We submitted this credit during the preliminary design application. The strategy that reduced potable water needed for the toilets and urinals consisted of high efficiency toilets (4 litres for full flush and 3 litres for low flush) and low water urinals (set to provide 1 litre per flush) with infrared control, which resulted in a 50% reduction that was accepted. However, we received a comment to upload evidence that a project team member has participated in the LEEDUser online pilot credit forum as required.
We are planning to submit the account details and the relevant comments made in this topic.
Can anyone confirm that this is the right documentation?
Many thanks,
Adreinn

Greetings Adrienn,

As the Pilot credit submittal requirements did not call for this supporting documentation I did not think to include it for the prelim submittal. Prelim review comments for my aforementioned project are anticipated from GBCI in early April so I can advise what I am asked to provide at that time. In advance of that, though, I think it could be as simple as printing this webpage to a PDF and circling your specific entry so its easy for the reviewer to see it quickly. Good luck!

Greetings all,

I just wanted to provide a quick update.

My project was just awarded both WEc2 and IDc1 for WEpc10 using the approach and documentation I referenced above. In addition, this in conjunction with high-efficiency flow fixtures also allowed the same project to achieve all available WEc3 points and an ID credit for Exemplary Performance of WEc3 (calculated 45%+ overall regulated fixture water use reduction).

In summary, the use of very low-flow plumbing fixtures is a strategy to cost-effectively achieve (8) points under LEED 2009.

I hope this feedback is helpful- Best of luck to you all in your efforts!