Our team is working through compliance option 4. Our building does not have any manufacturer cutsheets for the water closets or faucets. We need flow/flush rates for a 20% representative sample of each fixture type.
Our building has tankless toilets. How can we measure GPF? We need an accurate and inexpensive method, if possible...
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David Posada
Integrated Design & LEED SpecialistSERA Architects
LEEDuser Expert
1976 thumbs up
July 30, 2010 - 12:41 pm
Can you find a model or serial number on the flush valves and contact the manufacturer for the product specifications? Do you know the date when they were installed? You might be able to use the standard flow rate for that type of fixture made at that time.
Nadine Kotlarz
7 thumbs up
July 30, 2010 - 12:46 pm
Unfortunately, no. Our building engineer was not able to identify any markings to suggest the model, etc. I'm going to visit the building later today to be sure. Also, this is a school with poor management of documentation and we don't have verification of dates of installation of any fixtures (although the assumption is pre-1994)...
Jenny Carney
Vice PresidentWSP
LEEDuser Expert
657 thumbs up
July 30, 2010 - 12:48 pm
We've had our project teams do the measurements on tankless toilets. You just need to disconnect the flushometer from the bowl, flush into a bucket, and measure the water in the bucket. Folks on the maintenance/facilities staff can usually deal with figuring out the best way to disconnect the flushometer.