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Author:
Trumptone (NJ)
The water pressure gauge right after my well pump maxes out when the pump is on, is this normal?
It was showing a pressure around 40 psi, then the pump turned on. While the pump was on, the needle went all the way around to the right (100 psi). When the pump stopped, the needle settled at 60 psi.
Thanks.
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Author:
m & m (MD)
The problem is not with the gauge but rather with either the pressure switch clogged up with iron/rust/sediment, or the pressure tank needing air, or a ruptured diaphragm in the pressure tank.
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Author:
hj (AZ)
quote; the pressure tank needing air, or a ruptured diaphragm in the pressure tank.
Reply To This Message
That would have nothing to do with the switch not turning the pump off when it reached its pressure setting. The switch is not working properly for some reason. A clogged pipe connection is the most likely reason, but there could be other possibilities, such as the gauge being located in the wrong location.
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Author:
m & m (MD)
Better stated: the primary problem lies with the switch, you MAY have a secondary problem with your tank. While servicing the switch, also check the tank air volume.
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Author:
Trumptone (NJ)
The gauge is directly connected to the pump by a tee fitting. Since the pump stops, and then immediately, the gauge reads 60psi, how would the switch be bad?
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Author:
m & m (MD)
The switch is probably bad because you said the pressure goes up to 100 PSI before shutting off the pump. That is not normal for most residential systems. Assuming the gauge is good, that would place the failure with the switch.
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Author:
KCRoto (MO)
I think the pump is probably slamming the gauge, or the gauge is weak. If it returns to 60 psi when the pump is off the pressure switch is operating correctly, and any pressure tank issues are irrelevant to the gauge reading high. If the pressure gauge is across the top of a T where the incoming water is instead of 90 degrees to the flow, that could explain the problem- it sounds like it is basically water being hammered into the gauge until the pump shuts off and the excess can bleed back into the system.
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Author:
hj (AZ)
The gauge is at the "high pressure" point on the pump. It is showing the resistance to the water entering the tank. When the pump shuts off, the pressure at the gauge, due to it pumping, drops to the actual pressure in the system.
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