Our supplier is providing basin taps with different flowrates for normal washrooms and disabled washrooms. How can I determine the occupancy of the disabled to estimate water usage?

do these count in our standard water calculations? if not, can we include them as process water to earn exemplary?

Informal discussions among LEED project team administrators reveal conflict in whether greywater to flush toilets does/does not have to be generated onsite.

Anyone have a precedent for weighing males/females differently than LEED's standard 50%/50% split on the FTE's?

Do I have to account for the water use of existing fixtures to remain on a major renovation (football stadium) under LEED NC, if they are within the LEED boundary, but the spaces/structures they ar

Our project is a 50% office- 50% lab building. Are laboratory sinks to be accounted for in this credit calculation? Thanks.

If we were to calculate the average flush rate of a dual flush toilet (with urinals present in the space) we use the example average flow rate equation provided by USGBC in their Appendix A water c

I have never quite understood what happens when a building uses many different types of fixtures.

I have some slight doubts about the way commercial prerinse spray valve should be integrated in the calculation.

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.