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Well system cant keep up

Home Improvement Asked by Chris Arnold on March 10, 2021

Hello I have a well system and cannot run my 2 hose bibs at the same time. Also my sprinkler system only runs for about 2 mins before my pump runs to 0 pressure in the system. I installed a new bladder tank last year and I just installed a new 40-60 pressure switch

3 Answers

You appear to be exceeding the amount of water (or rate of water per unit time) that your pump (or well itself) can supply at once.

If this is a change from past behavior, it could reflect a pump degrading with age, or a change in the hydrology around the well.

  • In the case of a degrading pump, there might be plenty of water in the well, but the pump can only pump it out so fast.
  • In the case of a change in hydrology, the pump could be pumping out all the water in the well faster than the well refills from the ground around it.

Answered by Ecnerwal on March 10, 2021

Most likely you are "pumping air" bc you pumped the well down below the pump. The well can't produce the volume you are trying to pull. There are controls that can detect when you are "pumping air"...the amp draw of the pump is a lot less when pumping air than when pumping water. The control will shut off the pump for some period of time to allow the well to recover. The timings are adjustable to the hydrologics of the well.

Systems can be designed to have a holding tank (not a pressure tank) that can be slowly filled based on the production capacity of the well. Then a jet pump can get the water from the holding tank and pump it into a pressure tank.

Obviously this is a much more complex system that will need to be designed, but it's the best way to deal with a low producing well.

Answered by George Anderson on March 10, 2021

You should call in a person or company that drills and services wells.

  • The well may not have the capacity it used to due to mud and debris sealing the water entry to the well cavity.
  • The existing pump impellers could be plugged with mud not allowing the pump to develop it's normal capacity and pressure.
  • The pump may not have the capacity to do the job you want it to do.

Save yourself the aggravation of trying to guess what the problem is and "make the call" to an expert.

Answered by d.george on March 10, 2021

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