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BackUp (Supply (Over pressure (Spray (driven air), Liquid volume, Splash),…
BackUp
Supply
Over pressure
Spray
driven air
Liquid volume
Splash
Air Entrained
Foot Valve Sucking
Cavitation (level)
Vortex column in sludge
Low tank level
Splashing (driven)
Check valve dislodged
Seal pre-failure
worn/dry
overheated
Joint sealer-teflon,dope,...
Decrease
Flow Switch
Pressure Switch
Burn (crack)
b4 and aft dress check
Dresser ($2~7k)
Return
Liquid
Supply
Return
plugged Drain
Return level too high
overfilled
clean tank low
Foam
Supply
(pump) Air entrainment
Return
excessive volume
excessive driven force
Temporarily induce by Manpower