Water pump
Anyone have an idea why my water pump pulsates when water is turned on instead of running constant. Thanks for any help.
Forum Discussion
As 'old guy' suggested.......
There is an adjustment on the end of pump that you can adjust the shutoff pressure.
The basic RV Shurflo pump has a cutoff pressure of 45#. Turning the adjustment screw clockwise increases that shutoff point.
BUT turn it only 1/2 turn and check the results......should run for at least 1 sec. with an off-time of 2 sec.
1 1/2 turns on adjustment screw MAX
Why is it now doing this.......
Simple. It is reaching pressure switch set point easier due to restrictions in plumbing system ie: dirty aerators, scale build up in faucets/toilet valve, scale in water heater, in the WH nipples/check valve......an accumulation of resistance.
Two methods of reducing pump cycling.....
Adding an accumulator tank
Increasing pump pressure set point
There is an adjustment on the end of pump that you can adjust the shutoff pressure.
The basic RV Shurflo pump has a cutoff pressure of 45#. Turning the adjustment screw clockwise increases that shutoff point.
BUT turn it only 1/2 turn and check the results......should run for at least 1 sec. with an off-time of 2 sec.
1 1/2 turns on adjustment screw MAX
Why is it now doing this.......
Simple. It is reaching pressure switch set point easier due to restrictions in plumbing system ie: dirty aerators, scale build up in faucets/toilet valve, scale in water heater, in the WH nipples/check valve......an accumulation of resistance.
Two methods of reducing pump cycling.....
Adding an accumulator tank
Increasing pump pressure set point
