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  1. #1
    Join Date
    Jul 2006
    Location
    Georgia
    Posts
    398

    Not sure where this goes but I have a leaking pool heat pump

    a customer I have had me come out and look at his pool heat pump

    said it was "leaking"

    its leaking water from a thermistor?

    see pic Name:  water leak.jpg
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  2. #2
    Join Date
    Jul 2011
    Location
    East coast USA
    Posts
    975
    If you see water coming out from the hole in the well, you have a crack in the well where the thermistor goes into. Is the well Stainless? and is that really grease?

  3. #3
    Join Date
    Jul 2006
    Location
    Georgia
    Posts
    398
    this is inside the heat pump that heats the pool and yes that's grease

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,171
    Leaking well, replace it.
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    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Jul 2006
    Location
    Georgia
    Posts
    398
    Quote Originally Posted by beenthere View Post
    Leaking well, replace it.
    Could you elaborate please?

  6. #6
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,171
    The sensor is in a well. It just screws/threads into the PVC the water travels through. Just screw the well out and screw another one in. The grease is probably a heat sink compound for better heat transfer for the sensor.
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  7. #7
    Join Date
    Jul 2006
    Location
    Georgia
    Posts
    398
    Okay. I'm sorry if this sounds dumb but I do not have much plumbing experience beyond water heaters. What is the "well"?

    Are you referring to the pipe that the sensor is inserted in?

    Or

    The underground pipe?


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  8. #8
    Join Date
    Jun 2003
    Location
    Chicago, IL
    Posts
    4,461
    the well is the metal thing the sensor is inserted into.

  9. #9
    Join Date
    Jul 2006
    Location
    Georgia
    Posts
    398
    ?

    The sensor is inserted into 2in schedule 40 PVC pipe


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  10. #10
    Join Date
    Jan 2010
    Posts
    6,352
    Quote Originally Posted by Cli-Max Indoor Air View Post
    ?

    The sensor is inserted into 2in schedule 40 PVC pipe


    Sent from my iPad using Tapatalk HD
    The sensor is not that big. If you took a 2" pvc pipe and glued a 1" female threaded nipple to it, you could then install a smaller say 1/2" pipe ( plug at the end and threaded at the other ) into that female nipple. Does that make any sense ? Then you would insert the sensor into that 1/2" pipe or so called ( well )

  11. #11
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,171
    The thing with the "greaese" on it. Should just be a well with the sensor inserted into it.
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  12. #12
    Join Date
    Nov 2008
    Location
    baltimore
    Posts
    26
    it looks as if someone drilled and tapped 2" pvc tee and inserted a well into those threads. Drain down system unscrew old well insert new or reuse old with teflon tape and pipe dope. Insert sensor with heat transfer. Fill back up

  13. #13
    Join Date
    Jan 2013
    Location
    NC/VA
    Posts
    85
    The grease is just a packing inside the well, that is holding the thermal to the inside wall of the well. so as to get its best temperature reading as the water inside the pipe flows across the inside of the well. the grease is not actually inside the pipe where water is flowing, its just inside the well portion where the thermometer (temp sensing unit) is located.
    sorry thats the best i can explain it, it was a topic we covered in our Automatic controls module.

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