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  1. #1
    Join Date
    Nov 2011
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    1

    Default Deep well pump wont shut off

    I have a 175' well with a submerseable pump. It will not build pressure above 28 psi. It will will hold at 28 psi, even if I manualy shut it off. Presure tank is at 28 PSI. New presure switch (30/50 psi)........ HELP PLEASE

  2. #2
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    6,047

    Default Re: Deep well pump wont shut off

    If it keeps suppling water but not above 28 lbs., I would say your pump is worn out and needs to be replaced.

    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  3. #3
    Join Date
    Nov 2011
    Posts
    3

    Default Re: Deep well pump wont shut off

    it could just be the impeller is worn on the pump, the pump works as you say, so the impeller would be something to check out. If the pump is working, maybe not to it's full power, then the pump as stated before. I'd check the impeller and pump bearings before I'd invest in a new pump.

  4. #4
    Join Date
    Aug 2007
    Location
    Maryland
    Posts
    2,009

    Default Re: Deep well pump wont shut off

    I would agree the pump's worn out. Is it over 20 years ols? Not a DIY. One of the costs for living in the ecountry and not having chlorine & floride in your drinking water.

  5. #5
    Join Date
    Dec 2010
    Posts
    24

    Default Re: Deep well pump wont shut off

    check the pressure tank first, if depressed you shouln not get water out of the tire valve, if there is water when depressed get a new tank. that is probally all that is wrong about $100 and an hour of your time at home depot or tractor supply

  6. #6
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    6,047

    Default Re: Deep well pump wont shut off

    Quote Originally Posted by perchinonlakeerie View Post
    check the pressure tank first, if depressed you shouln not get water out of the tire valve, if there is water when depressed get a new tank. that is probally all that is wrong about $100 and an hour of your time at home depot or tractor supply
    The problem as described is not symptomatic of a water logged pressure tank.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  7. #7
    Join Date
    Oct 2011
    Posts
    15

    Default Re: Deep well pump wont shut off

    This does not sound like a water logged tank. The symptoms would be different.

    It sounds to me like one of three things has happened. I will start with cheapest and go to expensive.

    1. If you have steel pipe in your well, it may have a small hole in it not allowing the pump to build pressure. Also may have a hole in a steel coupling. Another problem we are seeing is with pvc couplings being cracked. If you have steel pipe I would suggest replacing with pvc. It gives you so much better water quality and never goes bad.

    2. The pump end is worn out. This could be from impellers being worn, bad bearings, or shaft twisted. The pump is made up of two main pieces, the pump and the motor. If the motor checks good it is up to you as to replace both components or to replace only the pump end. The pump end is roughly about half the price of both motor and pump. The pump can be rebuilt but by the time you buy the parts and pay labor to rebuild it, you can buy a new pump with a warrantee. You'd be hard pressed to find someone to warrantee a rebuilt pump. With a decent warrantee anyways.

    3. This one is an expensive speculation. I don't think this is it but it is still a possibility. The pump is putting out only what the well is producing. If this is the case, the well would have to be drilled deeper. I only mention this because I don't know what part of the country you are in. 175 feet may be deep in your area. In the area I live in I can go an hour north and the wells range from 100 feet to 200 feet or I can go 30 minutes south and the wells range from 700 feet to 1500 feet. So again I don't know what is normal where you are.

    Best wishes and hope the problem is a cheap fix.

  8. #8
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    6,047

    Default Re: Deep well pump wont shut off

    Quote Originally Posted by shannonw View Post
    This does not sound like a water logged tank. The symptoms would be different.

    1. If you have steel pipe in your well, it may have a small hole in it not allowing the pump to build pressure. Also may have a hole in a steel coupling. Another problem we are seeing is with pvc couplings being cracked. If you have steel pipe I would suggest replacing with pvc. It gives you so much better water quality and never goes bad.

    3. This one is an expensive speculation. I don't think this is it but it is still a possibility. The pump is putting out only what the well is producing. If this is the case, the well would have to be drilled deeper. I only mention this because I don't know what part of the country you are in. 175 feet may be deep in your area. In the area I live in I can go an hour north and the wells range from 100 feet to 200 feet or I can go 30 minutes south and the wells range from 700 feet to 1500 feet. So again I don't know what is normal where you are.

    Best wishes and hope the problem is a cheap fix.
    Excellent point no.1.

    Point number 3 seems unlikely because the OP didn't say anything about large amounts of air in the water.

    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  9. #9
    Join Date
    Apr 2010
    Posts
    2

    Default Re: Deep well pump wont shut off

    Quote Originally Posted by carlcgland View Post
    it could just be the impeller is worn on the pump, the pump works as you say, so the impeller would be something to check out. If the pump is working, maybe not to it's full power, then the pump as stated before. I'd check the impeller and pump bearings before I'd invest in a new pump.
    If you knew what you were talking about, you would know that that submersible pumps do not have an impeller. they have multi stage disc that raise water from one stage to the next.

  10. #10
    Join Date
    May 2008
    Location
    Pacific Northwet
    Posts
    1,898

    Default Re: Deep well pump wont shut off

    The pump itself can certainly be rebuilt, but it may be more cost effective to simply replace the pump (and the wire & pipe, if there's any sign of aging). The big expense is hiring a pump service co. with a crane truck to remove the pump from the well and put it back in. The last thing you want is to rebuild the pump then have the motor or the pipe go out in a couple of years, requiring another call to remove the pump from the well.
    The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.

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