7 if you can do back flips with a jelly spliff
The air charge in a bladder tank should be 2 PSI below the pressure switch ON setting. In other words if the pressure switch is a 30-50, then the tank air should be 28. -If the pressure switch is the higher 40-60, then the tank air is 38. These tanks are all charged at the top and you can check air pressure there also.
This is done at the pressure tank. First drain the tank with pump off, then check air pressure at the tank top nipple. It should be above 26 psi. If not this is your problem. You may need a new tank or it it's a 'galvanised ' tank , a new air charge. You may also need the pressure switch adjusted, or even a new one. -Call a well technician for an expert opinion and repair.This is done at the pressure tank. First drain the tank with pump off, then check air pressure at the tank top nipple. It should be above 26 psi. If not this is your problem. You may need a new tank or it it's a 'galvanised ' tank , a new air charge. You may also need the pressure switch adjusted,or even a new one.-Call a well technician.
with a pressure tank and pressure switch
The size of tank is immaterial. ALL domestic well water pressure tanks should have 28 or 38 psi when nearly empty. The difference is whether it has a 30/50 or a 40/60 pressure switch on it.
In the incoming water line from well, before pressure tank.
Generally the pressure in the tank air bladder should be 2 psi below the water pressure switch kick in (pump turn on) point. In this example of 48 to 68 Lbs the air bladder pressure should be 46 psi. This pressure should be measured with the tank empty of water, that is to say NO water pressure applied. NEVER over pressurize the air bladder - it would be better to under pressurize if in doubt. Some tank manufacturers may recommend a different PSI differential so check with the tank literature or the manufacturer.
A bubbling noise in a well pressure tank is a sign of a hole in the tank. It means that air is getting into the tank and causing air to bubble through the water.
No. Low pressure is a function of the well tank. Your pressure tank must have an adequate air pressure to maintain water pressure. A leaky check valve is not good news however, and will cause your pump to run excessively. This valve should be replaced ASAP.
There isn't a pressure sensor - you're probably thinking of the fuel sending unit, which is mounted at the top of the tank. It'll read your fuel level, but not pressure - the tank isn't pressurized to begin with, and any fuel being returned to the tank would be on the low pressure circuit, as well.
no it should not be half full, it should be 80-90% full with the void space pressurized by or with air
the pressure depends on the well pressure tank and switch. It is normally between 30 and 70 psi in a domestic well system
If you are on a well.