Air in plumbing line

Originally Posted By: Steve Yared
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Had a friend ask me about air in the home’s plumbing pipes, the air spits out with the water. The house is 12years old on a well with original pump. He said the flow rate and pressure has not changed that he’s noticed. Is the water being introduced by the pump somehow?



Steve Yared


The Home Examiner LLC


616-776-7725


www.thehomeexaminer.com

Originally Posted By: Blaine Wiley
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If there is air in the lines on a well it usually indicates a leak on the suction side of the pump. Has he checked that?


Originally Posted By: Guest
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Blaine’s right. Pretty soon it won’t pump at all.


Originally Posted By: Steve Yared
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That’s what I thought could be the cause, the pump is in the well so it’s not something he can check himself. Thanks



Steve Yared


The Home Examiner LLC


616-776-7725


www.thehomeexaminer.com

Originally Posted By: Guest
This post was automatically imported from our archived forum.



Steve, if the pump’s in the well there is no suction line. There are two or three reasons for air in that system. The most likely cause is a worn impeller on the pump, causing cavitation.


If there’s a check valve at the tank, then the foot valve on the pump could be bad allowing the line to drain between cycles.


Again, if there’s a check valve at the tank, the supply line could have a leak and be draining between cycles there. Usually, if you get a leak big enough to drain the supply line, you’ll develop a sink hole or a really wet spot in the yard between the well and house.