Hello all, Can rainwater harvesting be used to reduce the indoor water consumption percentage?

In v2009, you could use 3.6 GPF blowout toilets in institutional uses, but could not show savings for using blowout toilets with lower flow.

Are public lavatory and kitchen faucets excluded from the requirement to be WaterSense labelled?

Our project includes a community center and a multi-residential part.

The new prerequisite states "No once-through cooling with potable water for any equipment or appliances that reject heat". Does this exclude IDDE systems?

Has anybody actually shared their water data yet? My client is asking how to go about this. I guess same is true of energy.

Our projects frequently have process water uses in labs or other equipment that is not listed here, as well as laboratory faucets, or hose wash down areas. How are these to be handled in v4?

My project is an Investigation Center which has laboratories. The lavatories found in the lab area (chemistry) should be considered in this credit?

Reference Guide indicates WaterSense label requirements are mandatory in U.S. Right now the program for the WaterSense label on toilet flushometers is still in draft stage.

http://www.usgbc.org/resources/indoor-water-use-calculator