This is what is listed in the addenda for the WEc4, Process water use reduction, post date is 7/19/2010:
http://www.usgbc.org/Docs/Archive/General/Docs6392.pdf
"Under Implementation WEc4 Process Water Use Reduction:
In the beginning of the first line of the first paragraph, insert the text
"With the exception of prerinse spray valves”
We are using 4 diff equipment types, water usage in our equipment types is less than the base line case and the one category that is other, the water reduction is more than 20%. One of the equipment category is "prerinse spray valves". We are constantly getting the error that the documentation is not complete, is it 'cause the spray valves cannot be included (which is close to what I think the above addnda text states)? We dont know what we are doing wrong. We have uploaded cutsheets for all, still seems like we are not meeting the requirement.
I also changed the %age reduction to 20% for all equipment, just to see if that will help. But it doesnt.
Thank you!!
Shivani Langer
ArchitectSHW Group
9 thumbs up
July 24, 2013 - 11:49 am
Does anyone have any comments about the above? We are constantly getting this error that documentation is not complete. Is it that the spray valves are not counted? Anyone run into this problem before? There is no check compliance tab in the form to indicate where the problem lies, thank you!
Suzanne Painter-Supplee, LEED AP+ID&C
PrincipalSEESolutions LLC
126 thumbs up
July 24, 2013 - 12:31 pm
What is your other equipment? Prerinse sprays were on my letter template. Were all of the pieces you are specifying at or below the baseline? Also, if you have, say, two ice makers, one of them needs to be over 175# and the other UNDER 175# to count as two.
Shivani Langer
ArchitectSHW Group
9 thumbs up
July 24, 2013 - 12:52 pm
Thanks for your response. We have one dishwasher, one ice maker below 175, one scrap master (other category, more than 20% savings). All of ours are below each category baseline (one of them is lower than 20% savings). The text of the credit says, each equipment needs to be below baseline, except if its under "other" category, then it needs to be 20% below baseline (and the scrap master meets that).
Suzanne Painter-Supplee, LEED AP+ID&C
PrincipalSEESolutions LLC
126 thumbs up
July 24, 2013 - 1:28 pm
Scrapmasters are disposers and disposers aren't allowed in schools seeking WEc4. An alternative is a Trough Collector, (same company). Collectors, disposers and pulpers are permitted in LEED for Healthcare WEc4.3, so a collector could potentially get approved. If pulling it leaves you in a lurch without a fourth appliance, consider a "flake" or "nugget" icemaker for the athletic department, particularly if it is a high school. It would also contribute in a big way because those machines tend to be 900# +, and they use 12 gallons per 100# ice. Does that help?
Shivani Langer
ArchitectSHW Group
9 thumbs up
July 24, 2013 - 5:09 pm
Yes, it helps a lot! Thank you, we are looking into other options.