• Timlo
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  • Registered: 2015-06-25
  • Posts: 3

Topic: Well pressure

Hi , hope i can find some answer
Back in January my pressure switch shorted out it kept blowing the fuses so I replace the switch I couldn't  read what pressure was on the switch so I just figure I have a submerged pump and 35 gal well-trol WX 203 tank that it was 30/50 switch I put the new switch in and it was fine the pressure was a little stronger as it shook the pipes when it shut off I didn't like that so I went and bought a new pressure gage installed that and I bought a 20/40 pressure switch change it all over to the 20/40 the pressure was lower then normal but was working fine then the pump started staying on longer and longer then I noticed the pressure wouldn't go above 35 psi and it takes at least 10 minutes to get there I lower the cut off but pressure is to lower I drain the system check the tank pressure its at 18 and no water coming out of the air valve I don't know what kind of pump it in there as it under ground and I know it at least 18 to 20 years old and I don't seem to have any leaks anywhere does anyone have any ideas for me to check?

  • Timlo
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Re: Well pressure

Someone said I might have a small pin hole it the bladder

  • From: Riverview, Fl.
  • Registered: 2012-06-18
  • Posts: 56

Re: Well pressure

I think  your going to find out that your drop pipe has holes caused by electrolysis.  This is not common, but it happens a lot.  As the holes get bigger and more plentiful, the pressure will keep going down.  If you were to allow the pump to keep running for a while with no faucets open, the water around and in the pump is going to get very hot and eventually nuke the impellers in the pump.  This also lowers pressure.

I am quite sure you will have to pull it and replace the pump and pipe.

Speedbump's Website

  • Timlo
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Re: Well pressure

Is it better to to use a thicker drop line this time Iam not sure what in there now but I guess I will fine out soon enough I live southwestern Michigan very sandy area should stay with the same type of pump? Thanks Speedbump I appreciate your input

  • From: Riverview, Fl.
  • Registered: 2012-06-18
  • Posts: 56

Re: Well pressure

Generally you would replace your pump with the same horsepower and pump end as the old one.

You must have galvanized pipe if you do have holes.  You can go back with Galvanized again or use SCH 80 PVC or use Poly 160 psi or better.  If you go with the poly to prevent more electrolysis, go with brass or stainless male adaptors.

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