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Thread: What might have caused this?

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    Join Date
    Jul 2013
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    Mesa, AZ
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    What might have caused this?

    Discharge pipe from pump disconnected(?) with such force to bend the pvc pipe.

    https://flic.kr/p/qMVhGt
    https://flic.kr/p/qMVgrc
    https://flic.kr/p/r5nQCv
    40k Pebble Pool with Spa Spillover
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    Re: What might have caused this?

    Quote Originally Posted by Nixid View Post
    Discharge pipe from pump disconnected(?) with such force to bend the pvc pipe.



    Can you repost pics, they are not popping up for me

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    JasonLion's Avatar
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    Re: What might have caused this?

    My guess is that the flow was completely blocked somehow, and the water in the pump and connected pipe seriously overheated, weakening the PVC. With flow completely blocked, the pressure would be roughly 40 psi, and with the pipe weakened from the heat it could easily fail. That doesn't tell us where the blockage was however.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    pragmatic's Avatar
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    Re: What might have caused this?

    ^Agreed! Heat definitely involved!
    Dave My Pool Build, ODK Build
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    Re: What might have caused this?

    Any chance freezing blocked the line and caused it to overheat like Jason said?
    18' x 36' saltwater inground vinyl pool

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    Divin Dave's Avatar
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    Re: What might have caused this?

    Holy Cow!
    Yeah, that got hot!
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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    Re: What might have caused this?

    I had a similar thing and mine was caused by the failure of a check valve between the pump and filter. It was the flap type valve and the flap tore loose and got wedged so that it blocked the water flow. I don't see a check valve in your set up but, I agree something blocked the water flow causing the water to overheat. Block that flow long enough and the water will boil.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    Re: What might have caused this?

    Awful plumb job and pump running dry (heat)

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