We have a project where we can only use Flash Valves for WC instead of Reservoir. The valve is having a sensor and has a kind of automation for the dual flush option. The manufacturer...

Hi LEEDusers,

I have a technical question regarding WEc3 exemplary performance. Can somebody confirm requirement for exemplary performance in LEED-2009 NC USGBC reference guide or have...

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? 5% of total...

do these count in our standard water calculations? if not, can we include them as process water to earn exemplary? in the FAQ section above it states that water fountains and other fixtures...

Informal discussions among LEED project team administrators reveal conflict in whether greywater to flush toilets does/does not have to be generated onsite. Now that non-potable, greywater is...

We are having some trouble coming up with the calculation for rainwater stored and reused annually. We have a...

Metered showers and faucets appear to be rather clear based on the available LEED information and the new Water Use Reduction Calculator, but metered urinals appear to be overlooked.
Does...

I m working on a dormitory for kids. On the project we have bathrooms that only will be used by the kids (I am considering them as residencial), and other restrooms that will only be used for the...

Regarding a residential kitchen sink that has a faucet and a spray nozzle, would the spray nozzle be measured against the baseline flow rate of a kitchen faucet or a pre-rinse spray valve? I...

I m using the "water use reductions calculator" to document the WEp1 and WEc3. But in the project im working we will be reusing waste water for the WC and urinal flushing. How can I document the...