1303.13 Water pressure-reducing valve or regulator.
PC § 1303.13
Where the water pressure supplied by the pumping system exceeds 85 psi (587 kPa) static, a pressure-reducing valve shall be installed to reduce the pressure in the rainwater conveyance system piping to 85 psi (587 kPa) static or less. Pressure- reducing valves shall be specified and installed in accordance with Section 604.8.













