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jsmith948 · 03-31-2018, 02:48 PM

If the pump won't shut off on its own, then it isn't building up enough pressure to trigger the pressure switch. This could be caused by a leak somewhere in the system or the built in pressure switch is malfunctioning. Another possibility is the pump is sucking air. Does the system seem to have a lot of air in it?
Have you purged all of the air out of the lines by opening one faucet at a time until it quits sputtering?

03-31-2018, 02:48 PM	#17
jsmith948 Senior Member Join Date: Jan 2012 Location: Central San Joaguin Valley, CA Posts: 2,117	If the pump won't shut off on its own, then it isn't building up enough pressure to trigger the pressure switch. This could be caused by a leak somewhere in the system or the built in pressure switch is malfunctioning. Another possibility is the pump is sucking air. Does the system seem to have a lot of air in it? Have you purged all of the air out of the lines by opening one faucet at a time until it quits sputtering? __________________ Jack & Marty 2018 Laredo 298 SRL 2011 F-250 SB Crew Cab 4x4 6.7L