I replaced a shallow well jet pump for my sister when the endpeller shaft started to leak. When I initially primed and turned the pump on it built pressure to 50 lb and shut off coming back on at less than 30 lb. There was a leak around the water outlet on the top of the pump, so I shut it back off and tightened it up. When I turned it back on it would not build pressure much above 30 lb. I had to adjust the high pressure setting to about 32 lb in order to get it to shut off. I tried to check the pressure on the bladder tank but it didn't appear to have any pressure. I'm not sure the gauge was good, and I didnt have a tire pump or compressor.
The old pump pressure switch was adjusted at precisely the same pressures that I had to set the new one on.
There is a check valve on the inlet side of the pump, a gate valve on either side of the bladder pressure tank. The pressure gauge is on top of the pump, with none on the bladder tank. There is a hose bib on the bottom of the bladder tank.
The pump builds pressure rapidly when water is running and seems to cycle on continually while water is running, only shutting off when all taps are off.
The bladder pressure tank is about 4 ft tall being fairly large. The old pump cycled precisely the way that the new one does.
When I pressed in the valve stem on the bladder tank I heard no air coming out.
Is the pressure tank bladder broken? Why did the new pump build pressure up to 50 lb before I took the outlet line off and put more pipe tape on it before retightening it, and now wont build pressure above 30 lb?
The old pump pressure switch was adjusted at precisely the same pressures that I had to set the new one on.
There is a check valve on the inlet side of the pump, a gate valve on either side of the bladder pressure tank. The pressure gauge is on top of the pump, with none on the bladder tank. There is a hose bib on the bottom of the bladder tank.
The pump builds pressure rapidly when water is running and seems to cycle on continually while water is running, only shutting off when all taps are off.
The bladder pressure tank is about 4 ft tall being fairly large. The old pump cycled precisely the way that the new one does.
When I pressed in the valve stem on the bladder tank I heard no air coming out.
Is the pressure tank bladder broken? Why did the new pump build pressure up to 50 lb before I took the outlet line off and put more pipe tape on it before retightening it, and now wont build pressure above 30 lb?