Mike Slusher’s Pump Test

GPM = 29.83 x 0.99 x 2” squared x square root of 72psi. GPM = 29.83 x 0.99 x 4 x 8.485 = 1002 gpm. GPM = 1002. If you do not want to use the formula above see Table B, which gives the nozzle pressure for smooth bore nozzles. Discharge Table for Smooth Nozzles (nozzle pressure measured by pitot gauge) Nozzle. Pressure (psi) GPM. Nozzle ... ................
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