Geoffrey Gee
New Member
Cary, thank you very much, this is very much appreciated.There are also advantages to using a submersible well pump as a booster and install it inside the cistern.
View attachment 64614
Cary, thank you very much, this is very much appreciated.There are also advantages to using a submersible well pump as a booster and install it inside the cistern.
View attachment 64614
Suppose you have a precharged pressure tank with a diaphragm. Suppose you started with 18 psi air precharge with zero water pressure. If there is a small hole in the diaphragm, water pushes in slowly. Takes up space that should just be air.Still no further forward, but I could not understand why, so I shut the valve, switch the pump back on, straight away it fills up, system works great no more problems, well not for about 3 weeks, then same again, so I check tank pressure gauge shows approx 20PSI so the tank is almost empty, let the tank drain till it is completely empty and switch pump back on and again straight away fills in seconds, no problems, but now it has done the same 2 more times.
As an engineer I realized what I think is the problem, air pressure in the tank is greater than the water pressure.
Water pressure shut off is set at 40psi, no air valve on tank. I have bleed the system each time.
WHY??? no leaks any where, tank is about 24 months old, pump is about 6 months old, basically a new home.
Any advise would be very welcome.
Suppose you have a precharged pressure tank with a diaphragm. Suppose you started with 18 psi air precharge with zero water pressure. If there is a small hole in the diaphragm, water pushes in slowly. Takes up space that should just be air.
On a good tank, when you drop the water pressure to zero, the tank should be empty of water. It will be light. It will sound hollow when you knock on it. If there is water on the wrong side of the diaphragm, the tank will be heavy when the water pressure is zero. Depending on the tank, knocking on the lower part of the tank may not sound hollow. Do these symptoms match your pressure tank?
If the pump is just running and running and will not build up to 60 and shut off, you are most likely pumping the well dry and losing prime. Shutting the pump off, even for a few seconds lets its the well recover and the pump burp and prime. Check the amps when this is happening as they will drop considerably when pumping air. The Cycle Sensor reads amps and shuts the pump off when the well is dry to protect your pump.