Break tanks for flush valves meet Section 8 and never supply drinking water, hold a set minimum volume per flush valve, flush valves operate within the maker's pressure (300 kPa in the 2003 text), service pipes are sized to the guide and urinal flush valves serve limited stalls with capped discharge (2003 text).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.