Low water pump pressure jet pump deep well

[DANNY HARDAWAY]

I have a water well that only puts out 20psi. It's a jet pump deep well 35 foot. Pipes in the ground have been pulled and replaced. I can't set pressure switch with the low pressure cut on-cut off, am having to turn on off manually. What can I do ?

 

[LLigetfa]

Clean the jet.

 

[Sponsor]

 

[DANNY HARDAWAY]

Clean the jet.

The jet pump ?

 

[LLigetfa]

The jet part down in the well.

 

[DANNY HARDAWAY]

The jet part down in the well.

I had a well company come out a year ago he pulled everything out of the ground replaced pipes and cleaned after that still only 20 psi about a gallon a minute

 

[DANNY HARDAWAY]

We don't use much water and the 20 psi in the house we're ok with but is there a pressure switch for that low of water pressure. The pressure switch is on the pump can I put on the pressure tank water line.

 

[Reach4]

I think you are saying you only have had 20 psi for a year.
What did the well company think the cause of the problem is?

Is the pump in the house? How about a picture of that pump, the pressure switch, and the input to the pressure tank. Maybe somebody will identify something.

To look for a vacuum leak, you could sop all of the joints on the suction pipe (the bigger pipe) with water from a wet rag or sponge while the pump is running. See if the pressure rises when you get one of the joints good and wet.

Alternatively, run the pump and apply shaving cream to each joint, run the pump, See if the shaving cream shows signs of getting sucked in.

 

[DANNY HARDAWAY]

The pump is in well pit. He said that's about all this set up will put out suggested a larger pressure tank 80 gal. It had been switching on off good on 15 psi 20 psi appoximently. Then when points made contact no power went through burn points. I replaced it with a 20-40 and haven't been able to set cut on off setting.

 

[Reach4]

Is this a 2-inch well?
Is the pump atop the casing, or beside the casing?

The low-pressure problem is not the pressure tank.

 

[DANNY HARDAWAY]

Yes 2 inch along side

 

[DANNY HARDAWAY]

Will 20 psi from my water well fill my 40 gal pressure tank, does the pump pressure and tank pressure equalize

 

[LLigetfa]

Will 20 psi from my water well fill my 40 gal pressure tank

You cannot fill the pressure tank with water since it holds mostly air. A 40 gallon tank might hold 10 gallons of water depending on the precharge pressure.

 

[Reach4]

does the pump pressure and tank pressure equalize

Yes. As long as the water pressure is more than the air precharge, but not more than maybe 24 psi more than the air precharge, the two pressures would pretty much equalized.

There would be a small differential based on the altitude of the diaphragm vs the altitude of the water pressure gauge, and the diaphragm might have a little compression effect (ideally it will act limp). Those factors are generally small.

 

[Valveman]

If the well only makes 1 GPM, you need to put that in a storage tank and use a booster pump to supply water to the house. 1 GPM is 1440 gallons per day, which can supply 4-5 houses if you have a storage tank.