LEED template use the flush fixture water which calculated based on occupant usage. But our plumbing design is based on fixture unit which includes both flush and flow fixture into the WWTP sizing.
Our plumbing engineer comes up with the annual waste water of 19,000 kgal but the annual flush fixture water from LEED template is only 600 kgal. How can we fill in the LEED template?
Actually, all waste water will be treated by the WWTP and reused on site. We should achieve LEED credit requirement, shouldn't we?