Water Pump - open ended hose
I have a ShurFlo 4008 water pump. I'm trying to diagnose the 'pulsing' of the pump. I understand it may just be an adjustment of the pressure switch. It doesn't pulse if I open the kitchen Unfortun...
Forum Discussion
The procedure I found online and use to set By-pass and pressure switch. It requires having a pressure guage attached. I have a splice in my outdoor shower hose with a garden hose shutoff valve attached, to wash coach/car, to which I attach pressure guage.
You need to bypass pressure switch, directly powering the motor. With motor running, shower faucet open but not shower head, adjust bypass to 65 lbs on guage. Open and close shower head to make sure 65 lbs is stable, if not adjust bypass. After 65 lbs is stable, remove power to motor and put pressure switch back in circuit. Now adjust pressure switch to desired cutoff pressure (55 lbs is factory setting).
You need to bypass pressure switch, directly powering the motor. With motor running, shower faucet open but not shower head, adjust bypass to 65 lbs on guage. Open and close shower head to make sure 65 lbs is stable, if not adjust bypass. After 65 lbs is stable, remove power to motor and put pressure switch back in circuit. Now adjust pressure switch to desired cutoff pressure (55 lbs is factory setting).
