I do have a return to tank valve so if needed i could open it up to let the pressure off a bit , can you see a problem with that , oh and another thing , i take it that it goes the same way as a flojet , pressure switch at the bottem , inlet is on left , outlet on right , correct ?
Rich P @F
Rich I have the 60psi flowjet pump. I dont have a Bypass valve fitted, I take it that means that when you switch the pole valve off the pump carrys on pumping the water back into your van tank.
If thats true you should read the installation and service sheet that comes with the fowjet pump. Under subheading BYPASS OPERATION (if equipped) it reads, THE DUPLEX 11 SERIES PUMPS ARE NOT RECOMMENEDED FOR CONTINUOUS DUTY SERVICE DUE TO LIMITED MOTOR BRUSH LIFE. OPERATION AT LOWER PRESSURES AND TEMPRETURES, HOWEVER WILL EXTENTED OVERALL PUMP SERVICE LIFE.
sounds like you may be sending your pump to an early grave. The pumps are designed for intermittent use, switch valve on get water pump working, turn valve off, pump stops working water stops. On and off hence the pressure switch. The pumps do work harder with 100mtr Microbore hose rather then 50mtrs 1/2".
Nel.