My project was upgraded to the new version of LEED online around the beginning of the year so I am getting used to the new set up (so far it is very nice). Question: My plumbing engineer has said...

Do sinks in exam rooms need to be included in the calculations? They are primarily used for handwashing. If so, are they entered as 'sinks' or 'lavatories' as the baseline?

Thanks.

For an existing building undergoing major renovation how should the existing water fixtures be handled as far as WE prerequisite is concerned? Please note that no addition to the building will...

Through a series of circumstances, we are in the appeal process to try and meet WEp1. We have determined that we can either spend a significant amount of money to install two additional urinals...

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. We would like to confirm that, in fact, we can...

Hi,

I'm working on a large commercial project where there are cookery demonstration rooms that up to 50 visitors will attend on a daily basis. These spaces have kitchen sinks and hand wash...

area you required to treat harvested rainwater when using to flush toilets? if yes, what does "treated" mean exactly, what level of treated would be required? Thanks!

Looking at the Water Use Reduction - Additional Guidance in the section for Dual flush, they say: " For the female water closet usage, there is a 1:2 ratio in terms of number of full-flush to low...

Hi,
How should be the compliance (of 0.25gpc) for sensor based lavatory faucet be checked if the manufacturer mentions only “ adjustable from 1 - 20 minutes “ , the model in question is...

If we are using an exposed WC Flush Valve, which fixture family and fixture type should we choose in table WEp1-3?