meburdick
Platinum Member
Does this also apply to tanks with no bladder ? I have no Schraeder ( spl ? ) valve anywhere on tank to add air . 2 lbs less means if my cut in pressure is 30 psi I should have 28 psi in empty tank ?
It does apply to some tanks - depends on whether there's a valve or not. The link you were reading before has some info about checking the air in the tank and whether or not your system uses a bleeder orifice system to keep the air volume correct.