3Ts
Elite Member
I've seen high reading pressures from corroded gauges and pressure switch. Just like other posts, I'd start by replacing both and I'd bet the problem will be solved.
Pressure is pressure however if you have restricted flow pressure will still read without issue. I have replaced two 4” well pumps one from lightning strike and another from bad foot valve. Rule of thumb when you replace pump you change pressure switch. Relay contacts wear over time pressure can change. I run at 20/50 switch however I have large bladder tank to handle drop. Also bladder tanks go bad either rust or bladder failure. You can tell real quick on air input valve. If you press the center of the valve and water leaks the tank needs replaced. Ask your plumber these questions while he is there. I had to learn the hard way myself. I deal with fluid pressure every day in the liquid paint business. Pressure is pressure unless line is 100% plugged. Flow is completely different on restricted line pressure is constant. Hope you get your answers.So I have been worried my water pressure is too high in my house. If I can trust the pressure gauges ( one at entrance to 30 gal pressure tank and one near carbon and string filter setup) when well shuts off with the 20 /40 pressure switch at 40 psi, the well pump clearly can be heard to shut off, but the pressure gauges continue to rise and even out around 80 psi ( if I can trust the gauges) I got a new gould 240 volt submersible well pump 2 years ago that replaced a 20 yr old one, my well is 30 ft deep spring) I did try adjusting the two nuts on the pressure switch and now have it turning well pump on at around 15 psi , if I can trust gauges , and well pump shuts off at 40 psi, but pressure continues to rise to at least 75 psi. What do the well experts here think is going on ???
Thanks for all the advice, I decided to call local plumber, but now with advice here at TBN I am less likely to be led astray by any mischievous tradesman. At minimum I will have focus on him replace small piping with brass to new gauge and pressure switch and I have a new spare pressure switch already. Hopefully they return my voicemail this week with an appointment. I am going to see if I can find a pressure gauge tool that screws on to hosebib to give me a accurate read to calm my nerves in future. Meanwhile everytime I walk by pressure gauge in mechanical room and see it at 75 or 80 psi , I turn laundry tap on to relieve some pressure. ( but I swear it doesn't seem like 80 psi in faucets)
Pretty easy to see if the points in the pressure switch open up or not. If they are open, the pump should be off, but I would verify with an amp meter.Plumbers are here right now, they replaced gauge at tank, .....it still went high pressure, ....so tested with plumbers tool gauge at hise bib and it is a true 80 psi, not good, ....feels pressure switch could be not working right, so replacing that now......fittings were fairly clean fo both . .....will let uou know outcome.