In the discharge on a horizontal 4 inches PVC sewer pipe the distance from the top inside pipe to the water flow is 3 inches (0.25 ft). The inside diameter of the PVC pipe is 4.069 in (0.34 ft).
The discharge can be calculated as
q = 8.69 (1 - (0.25 ft) / (0.34 ft))1.88 (0.34 ft)2.48
= 0.049 ft3/s
d - inside diameter of pipe (ft)
a - distance between top inside pipe to water surface (ft)
d - inside diameter of pipe (mm)
a - distance between top inside pipe to water surface (mm)
Flow metering principles - Orifice, Venturi, Flow Nozzles, Pitot Tubes, Target, Variable Area, Positive Displacement, Turbine, Vortex, Electromagnetic, Ultrasonic Doppler, Ultrasonic Time-of-travel, Mass Coriolis, Mass Thermal, Weir V-notch, Flume Parshall and Sluice Gate flow meters and more.
The purpose of the sanitary drainage system is to remove effluent discharged from plumbing fixtures and other equipment.
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