I am working on an elementary school project with flush valve type water closets sized for young children. They are smaller than adult-sized water closets to make it easier for young children to use. I have reviewed available products from several plumbing fixture manufacturers and they only offer these fixtures in 1.6 gpf models. I cannot find anything in the LEED Reference Guide or in the LEED addenda that addresses a higher flush rate for this type of water closet. Has anyone confronted this situation before? And if so how did you resolve it?