Evidently, installing automatic shut-off controls for showers is deemed as not water saving strategy by the USGBC's LEED Department. It is not clear what "problem" the USGBC is trying to solve in...

Hello,
To obtain -40%, we'd like to use (in France) Water Closet dual flush fixtures 2-4 liters. We commonly use 3-6 liters, apparently, the 2-4 l flow presents difficulties from the...

I have never quite understood what happens when a building uses many different types of fixtures. We are working on a gated community where all the villas use same type of fixtures but the common...

I have some slight doubts about the way commercial prerinse spray valve should be integrated in the calculation. Those are quoted in the credit language, but then, there is no information anymore...

Hi, i'm working on a residential building where we are installing a permanent water metering system to monitore each residents water use. The residents have access to a website where they can...

We are working on a college dormitory and trying to calculate the daily uses for kitchen sinks. The only kitchen is on the first floor of the dorm and not in each dorm room. Since this is a...

Does anyone have experience with using a 1 gpm aerator in a residential setting? We typically use 0.5 gpm aerators in commercial settings which has worked fine. However, I'm concerned that a 1...

I'm debating how to set up my fixture groups for a large healthcare project. Initially, it makes sense to split into two groups:...

Hi,
Due to "Water use reduction Additional Guidance" from July 14,2011 Nonresidential Default Lvatory Faucet duration has changed from 15 to 30 sec.

Because of that from our...

How do you calculate the water use reduction for a mixed use building which contains 7 floors of commercial space and 34 floors of residential space? How do you account for the different usages...