Forum Discussion
Old-Biscuit
Mar 27, 2017Explorer III
Shurflo pumps have an internal check valve ----single diaphragm tp prevent backflow thru pump
High city water pressure/
Debris...plastic from installation/
Scale/crud on diaphragm
Running pump/using fresh water from tank will typically clear up debris/crud
Using a quality water pressure regulator solves high pressure issue
An in-line check valve --- 1/2" barbed type---can be installed in pump suction line as additional preventer
Try just running pump.
If check valve does not clear up/seal when pump is off then pump will occasionally cycle on/off due to pressure decrease from leaky check valve
I quit using 'city water' connection 9 yrs ago due to major unknown leak while sleeping ($6000)
Since then pump only....fill tank/use pump
If any leaks pump cycles and you know it
Plus very easy to turn pump OFF when going outside/leaving RV/sleeping etc. then having to go to water supply hose bibb to valve it out.
Pump/Tank for US!
High city water pressure/
Debris...plastic from installation/
Scale/crud on diaphragm
Running pump/using fresh water from tank will typically clear up debris/crud
Using a quality water pressure regulator solves high pressure issue
An in-line check valve --- 1/2" barbed type---can be installed in pump suction line as additional preventer
Try just running pump.
If check valve does not clear up/seal when pump is off then pump will occasionally cycle on/off due to pressure decrease from leaky check valve
I quit using 'city water' connection 9 yrs ago due to major unknown leak while sleeping ($6000)
Since then pump only....fill tank/use pump
If any leaks pump cycles and you know it
Plus very easy to turn pump OFF when going outside/leaving RV/sleeping etc. then having to go to water supply hose bibb to valve it out.
Pump/Tank for US!
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