When you are calculating, dual flush weighted averages for residential usage, the guidance says 1:2 ratio of full to low flush uses for both females and males.

We have come across an issue regarding flowrates and pressure. LEED states 2.5 gallons per minute at 80 psi for showers for example.

We received a reviewer comment saying since we had an adjustable shower head we would have to assume the highest gpm setting.

We have a small two story core and shell project. The owner provided rough ins for plumbing fixtures to be installed by the tenant.

We have seen several comments regarding the possibility (or not) to achieve both WEp1 and WEc3 through the use of on-site greywater and wastewater.

FYI, the November 2011 addenda has two additional pieces of guidance on WEp1 calcs that are especially useful for hospitality:

We are considering using multi-flow shower heads on a commercial office project for the locker rooms.

I am working on a hotel project, which would use standard fixtures (no high-efficiency fixtures), but would still earn 2 points under WEc2, and 2 points under WEc3 due to utilizing recycled gray wa

We have a manufacturing campus and are assessing a new office block within that campus.