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Thread: Low pressure to no pressure now

  1. #1

    Low pressure to no pressure now

    I don't know much about well but will try to explain the situation to the baset of my knowledge. We have a well installed about 20 years ago with a vertical drop of 90 ft. There are two pipes coming from the ground. The first pipe is 6" in diameter while the other one is 1" in diameter. At the pump house we have a 108gal Clayton Mark water system tank pre-charged to 30psi. The whole thing is run by a Franklin 3/4hp pump. I looked for how many gallons it pumps a minute but couldn't find one. I will make sure I measure that next time it's in operation again.

    We use the well water to water the garden. Last week the pressure dropped from using ten hoses to just one hose. I replaced the Franklin 3/4hp pump but that didn't help. In an attempt to put more air in the tank, water was coming out of the attachment. Forcing more air in through the water didn't help either. I listen to the intake pipe and I can hear a huming sound. After I tried to presurized the tank, we can only run one hose at half the capacity.

    Is it time to replace the tank?

    Rolly

  2. #2
    Pump guy speedbump's Avatar
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    HI Polly,

    The tank was bad when you bought it. They were one of the most problematic tanks out there. Before they folded. The tank has nothing to do with the one hose. It is the pump and the well that has to keep up with the demand. Without more info, I'm afraid I don't have any solutions.

    bob...

  3. #3
    Hi Bob,

    What other information do you need?

    Rolly

  4. #4
    Pump guy speedbump's Avatar
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    Can you run the pump open discharge, like rite out of the well and do a 5 gallon test on it. See how long it takes to fill the bucket in seconds?

    bob...

  5. #5
    The pump has been shut off since we have the problem not to cause further damage to the pump until I figure out the problem. We switch to using the city water for the time being.

    I ran 4 tests and found out it took exactly 60 seconds or 1 minute to fill a 5 gallon bucket. One thing I noticed at the pump house is that the pressure switch was pegging between 30psi and 40psi. That appears two low to me. If so, how do I change the low and high ppressure switch? Also, the water has a rusty color with coroded metals. It took about 5 minutes for the rusty color to clear.

    Thanks very much for your assistance.

    Rolly

  6. #6
    Pump guy speedbump's Avatar
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    Ok Rolly. If you ran the pump test at the well and it did 5 gpm, that's all you have to work with. That is about one garden hose. The pressure you are seeing isn't any help to me until you get a good tank in line. Also, you will need to set the switch to the new tank. This will help you with that. Setting pressure switch

    bob...

  7. #7
    Thanks for your help. Any recommendation for a new pump to replace the 108gal Clayton Mark water system tank?

    Rolly

  8. #8
    Pump guy speedbump's Avatar
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    Sure the Flexcon brand on my site. They are an excellent tank. But don't take my word for it. Ask around.

    You can see the Flexcon's here.

    bob...

  9. #9
    The tank we have right now is 108 gal. Does that mean I will go with the Model PC-366 Flex-Con tank?

    Rolly

  10. #10
    Pump guy speedbump's Avatar
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    No, not that big. I don't know what Clayton Mark meant when they put 108 on the tank. There is no 108 gallon galvanized tank. So I'm not sure what they are referring to.
    If you are only getting 5 gpm from the well, a 40 gallon would work. Bigger is always better, to protect the pump motor. Read this before you buy the tank:
    Bladder tanks VS Galvanized tanks

    bob...

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