P2904.6.2.1 Available Pressure Equation

P_t = Pressure used in applying Tables P2904.6.2(4) through P2904.6.2(9).

P_sup = Pressure available from the water supply source.

PL_svc = Pressure loss in the water service pipe. (Table P2904.6.2(1))

PL_m = Pressure loss in the water meter. (Table P2904.6.2(2))

PL_d = Pressure loss from devices other than the water meter.

PL_e = Pressure loss associated with changes in elevation. (Table P2904.6.2(3))

P_sp = Maximum pressure required by a sprinkler.