Forum discussion
NC-2009 WEp1: Water Use Reduction—20% Reduction
My project, a luxury hotel, wants to put multiple shower heads in their presidential suite. Is there a maximum number of flowing fixtures allowed in a shower so long as all components when on do not exceed 2.5 gpm?
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Kathryn West
LEED AP BD+C, O+M, Green Globes ProfessionalJLL
154 thumbs up
August 6, 2014 - 4:49 pm
There is not a maximum number of flowing fixtures allowed. However, to follow the intent of the credit I'd recommend that you augment the credit form to account for the fact that any showers taken in the presidential suite will actually be more like multiple showers. It might be as easy as bumping up the total daily uses. Are the showers throughout the building 2.5 gpm or just in the presidential suite? There may be a LEED interpretation about this but I don't see anything in the Water Use Reduction Additional guidance.
Victoria Civitillo
StantecAugust 7, 2014 - 12:54 pm
Thank you Kathryn. All the showers throughout the building will be 2.5gpm or lower to get us to meet the minimum reduction required.
Kathryn West
LEED AP BD+C, O+M, Green Globes ProfessionalJLL
154 thumbs up
August 7, 2014 - 1:35 pm
I'd add a description for your LEED reviewer and either bump up the total daily uses or create a separate "fixture group" for the presidential suite. I found this LEED Interpretation but it was for LEED for Homes:
Inquiry: How should the shower flow rate be calculated if there are two fixtures serving one stall?
Ruling
If one stall has two fixtures that cannot be operated simultaneously (e.g., a showerhead and a handheld wand where only one can be operated at one time), the flow rate for the purposes of the credit should be the higher of the two. If one stall has two fixtures that can be operated simultaneously (e.g., dual showerheads that can both be operated at the same time), the flowrate for the stall is the sum of both fixtures.