I wish to pursue an Alternative Compliance Path for taking account of collected rainwater being used for the toilet and urinal flushing under credit WCp1 and WE3. Should icomplete the template as having 0 flush volume for the WCs and urinals to "trick" the template into Attempting 4 points? as in our case the provision is actually greater than demand. If it was less than 100% i would pro rata this - correct? thanks
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Emily Catacchio
Sustainability SpecialistWight and Company
610 thumbs up
November 11, 2011 - 10:09 am
Vivien,I would not reccomend "tricking" the template. The form is asking how much water is used and does not consider what type of water. Even if it is 100% rainwater (which is fantastic!) you're still using that water so conservation is important. I would suggest selecting the "Alternative Compliance Path" in the form and then providing a narrative describing your strategies.
R Jones
74 thumbs up
November 11, 2011 - 10:17 am
Thank you - I also just foundthis additional water guidance that has been recently updated http://www.usgbc.org/ShowFile.aspx?DocumentID=6493
I can document the calculations as a narrative - but this won't take account of the points actually achieved by using rainwater to achieve >40% - how should i document this on the template so that it takes account of the 4 points in its calculations without - entering 0 as the flush volume?
Susann Geithner
PrincipalEmerald Built Environments
1297 thumbs up
November 11, 2011 - 1:01 pm
The LEED online template will not show it correctly. You will sumit your documentation under alternative compliance path. You than also note this under WE c3, so the reviewer sees that you are using rainwater. This is what we did in a recent project and it's also what the GBCI recommended to do.
Also make sure to show that the precipitation and tank size are working throughout the year to cover the water demand of your fixtures.