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FAQs about WEp1 :

In the credit calculation worksheet for indoor water usage, does each fixture needs to be listed separately (toilet #1, toilet #2, etc.) or can the fixtures can be grouped together, for example, with all toilets with the same GPF?

What do we do if we do not have cut sheets for fixtures installed many years ago?

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EBOM-v4 WEp1:Indoor water use reduction

Varying Fixtures

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R. Ted Krasnesky
Manager of Sustainable Construction
Pepper Construction Company
LEEDuser Basic Member
4 thumbs up

When inputing into the indoor water use reduction calculator, do we have to input each fixture individually? I ask this because I am doing this for a school and it has different faucet in the bathrooms and locker rooms. So how would I properly input this?

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Edward Malesevich
Sustainability Advisor
Transwestern Sustainability Services
LEEDuser Basic Member
12 thumbs up

Wed, 06/03/2015 - 21:49

The calculator provided by USGBC allows you to enter information for individual fixtures. When entering the fixture information in the design case fixture type, enter in the info for each individual fixture for both male and female groups. Then enter in the percentage of occupants that are served by that specific fixture. So if the lockers room faucets account for 10% of the total faucets, including bathrooms, locker rooms would account for 10% and bathrooms would account for 90%. The numbers will adjust based on these percentages. Make sure the totals for each fixture reference totals 100%. If the usage patterns are more complicated, you can enter in a separate group to differentiate between the two fixture groups.
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R. Ted Krasnesky
Manager of Sustainable Construction
Pepper Construction Company
LEEDuser Basic Member
4 thumbs up

Thu, 06/04/2015 - 13:30

Not all of the bathrooms' fixture are the same as well so does that mean I have to break that down by percentages for each specific fixture?
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Edward Malesevich
Sustainability Advisor
Transwestern Sustainability Services
LEEDuser Basic Member
12 thumbs up

Thu, 06/04/2015 - 14:45

That's correct. If other fixtures have varying flush/flow rates, they should be separated by the percentage of occupants they serve.

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