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Thread: How do I repair a main drain leak without excavating?

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    How do I repair a main drain leak without excavating?

    Hey guys,
    One of our residential pools has a leak in the plumbing that connects the main drain to the second hole in the skimmer. The pool during winter months drops down about 3-4 feet so I am going to guess that the leak is somewhere in that area underground. Is there any way to repair this without ripping apart the pool deck and digging behind the gunite? Its a 1980s Anthony pool.

    I saw this video on youtube too but I'm not confident that it could make 90 degree bends.
    http://www.youtube.com/watch?v=_g-fxO3ntjU
    Inground Concrete Pool With Fiberglass Walls (20,000 Gallons), Hayward .75 Super Pump, Hayward S200 Sand Filter, Pentair IntelliChlor IC40

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    Re: How do I repair a main drain leak without excavating?

    In the video it looks like the went around at least one visible 90 deg turn. I am willing to bet there at least two more on that pipe they did.
    another process that some plumbers use is something called, I think, pipe bursting. They pull a liner thru the pipe, inflate a bladder to seal it to the sides of the pipe, let the liner cure then pull the bladder out. I saw it being done on a large sewer pipe in town once. The liner was a fiberglass type of material that they used steam to cure.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: How do I repair a main drain leak without excavating?

    Looks like we will be excavating. I went in person to take a look and its a little different than what I said. The skimmer only has one hole and there is only one pipe coming into the pump so am I to assume the main drain T's into the skimmer underground somewhere? My plan is to break apart the pool deck and dig 5 feet down below the skimmer where hopefully a broken T is waiting for me. The pool system cannot operate at all at this point since its losing too much water.
    Inground Concrete Pool With Fiberglass Walls (20,000 Gallons), Hayward .75 Super Pump, Hayward S200 Sand Filter, Pentair IntelliChlor IC40

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    Re: How do I repair a main drain leak without excavating?

    I would call a plumber out first and have him put his camera down the pipe first. at least that can tell you where to dig
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: How do I repair a main drain leak without excavating?

    Funny you say that..thats exactly what we're doing. They want $400 for the service.
    Inground Concrete Pool With Fiberglass Walls (20,000 Gallons), Hayward .75 Super Pump, Hayward S200 Sand Filter, Pentair IntelliChlor IC40

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