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How much air pressure do you put in a well exspansion tank after it has been emptied?
Wiki User
∙ 16y ago
Normally pressure tanks come with about 30 p.s.i. pressure in them,but depending on the type of water system you may need to adjust the pressure. You always want the pressure of the empty tank to be less than the turn on pressure of your pressure switch on your pump(if you have a pump) about 5 p.s.i. less should do it.
Wiki User
∙ 16y ago
Wiki User
∙ 16y agoIf you are talking about residential water supply it is usually around 50psi (This is the pump kick-out point for my system. The pump kicks in at 25psi. My appologies for any confusion.) 21lb
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Is air pressure another name for barometric pressure?
In short, yes. The commonly-reported "pressure" talked about by meteorologists has been extrapolated down to sea level to eliminate pressure differences caused by altitude (air pressure drops much more quickly with height than it does between even the strongest high and low pressure systems). Air pressure sometimes refers to the pressure observed at a location and not adjusted down to sea level, whereas barometric pressure almost always refers to a sea-level pressure. But maybe this is too much information. A better answer would be "yes."
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