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Rick, Construction Supervisor
Category: Plumbing
Satisfied Customers: 22042
Experience:  Licensed Master plumber with 40+ yrs. experience.
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My well pump can pump shut off pressure but it does not

Customer Question

My well pump can pump shut off pressure but it does not maintain volume with the valve open
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: the past two weeks I've notice the pressure dropping while taking a shower, check the cut off switch and holding tank, they are ok
JA: Do you plan on doing the work yourself?
Customer: yes
JA: Anything else we should know to help you best?
Customer: the pump is 7yrs old, 44' well very hard water
JA: How long has this been going on? And how severe is the problem?
Customer: notice this progressing to get worse the past two weeks, checked the pump pressure, will pump with out load, drops
Submitted: 11 months ago.
Category: Plumbing
Expert:  Rick replied 11 months ago.

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can

continue our conversation.

What you describe sounds like a volume (flow) not a pressure problem. Volume problems are caused by a restriction on the water piping. You get good initial flow because of the built up static pressure but once that depletes the restriction reduces flow. Very hard water by itself can reduce the inside diameter of the piping from mineral deposits and can sometimes cause a significant restriction at some specific point. Also if your main shut off is not a ball valve (lever handle) that (usually gate) valve can fail causing a restriction. Also sediment build up at the piping near the holding tank is another possible culprit.

Expert:  Rick replied 11 months ago.

I have been called away. I'll respond if you have any follow up questions when I return in about an hour.