Quote:
Originally Posted by creahands  Before draining pressure tank, check air pressure with power on. If u get water pressure tank has gone bad. Needs to be replaced.
If pressure tank is good follow directions below to set air pressure in tank.
To check pressure in pressure tank, shut off power to pump and drain pressure tank from valve at bottom of tank. When tank is dry, check air at air inlet with tire gauge. Should read 2 psi lower than low setting for pressure switch.
Chuck |
Hey Chuck,
'Let's get together on terms before we confuse some one. You have giving directions for testing and charging a bladder tank, (see image) while calling it a pressure tank.(see image)
A pressure tank's galvanized and has no bladder. Although they both perform the same function they are completely different .
Let me explain the function of a bladder tank. Pressure and bladder tanks provide a air cushion that produces water pressure in your system so your pump doesn't kick on every time you draw a glass of water. a bladder tank has a neoprene membrane in the center. As the pump puts water into the bottom half of the bladder tank the membrane compresses the air in the top half. When the pressure reaches the cut off point in the control box the pump shuts down. However you still have between 40 to 50 pounds of pressure pushing the water out to your system. As the pressure drops in the tank when you make a draw the pump kicks on and everything starts over again..
A pressure tank has no membrane and uses the air compressed in the tank as the working force.
Hope nthis clears things up. Cheers, Tom
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