Water stopping in garden and barn, but not house

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coolcat7fl

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When i turn on the water in the garden or barn, it runs for about a minute or two, then stops completely. After minutes or hours, i can use it again. Any ideas? I hope its not the well as im on my second well pump in 12 years.
both barn and garden are fed from well, and are in line before the house pressure tanks, aerator, submersible
Im attaching a sketch of my water equipment layout.

Sorry for double posting, i cant find how to delete
 

Reach4

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Some do the double posting over and over for some reason.

I suspect there is a check valve between (the garden and well ) and the pressure switch. Remove it, and problem will be solved.
 

coolcat7fl

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Some do the double posting over and over for some reason.

I suspect there is a check valve between (the garden and well ) and the pressure switch. Remove it, and problem will be solved.

Would that be in the well? From the well to the house, pvc pipe is all underground, so i dont think a valve would be underground would it?
 

Smooky

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I agree with reach4. If there is a check valve in the water line after the barn and the garden and then the pressure switch is after the check valve, then what you describe will happen. The pump will not start running again until you turn on water in the house and when the pressure drops enough ,the pump will run and until it shuts off the water at the barn and garden will run again.
The check valve is probably near the pressure tank.
 

Smooky

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Here is a typical set up with the brass spring check on the left of the tee
tanktee.jpg
:
 

Valveman

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Since you have water at the barn for a minute or two, I do not think it is a check valve. It maybe the little line going into the pressure switch is clogged, and it takes a while for the pressure to drain out enough to start the pump. Are you saying that while no water is coming to the barn you still have water at the house?
 

Reach4

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Originally coolcat7fl had posted a diagram with two pressure switches and two pressure tanks. In an effort to remove a duplicate post, the diagram got deleted. It seemed that one pressure tank could be supplying the load for a minute or two while another pressure tank and pressure switch was somehow isolated -- presumably by a check valve.
 
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