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Thread: Sealing Natural Rock Waterfall/Spillway

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    Join Date
    Apr 2013
    Location
    Midland, TX
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    Sealing Natural Rock Waterfall/Spillway

    my PB is about to seal the limestone rock around our spa and travertine coping around our pool. he suggested not sealing the rock on and under the spillway of the spa. we are going back and forth on whether to do SWG or BBB, and the rock we chose is a limestone from Iowa.

    any advice will help!
    12,000 gal IG plaster saltwater pool w/ spa Build in Progress
    Pentair SuperFlo Pump, Triton II Sand Filter, MasterTemp Heater
    CompuPool CPSC24 SWG

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    chiefwej's Avatar
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    Jun 2011
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    Tucson
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    Re: Sealing Natural Rock Waterfall/Spillway

    SWG and limestone do not get along well.
    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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    Apr 2013
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    Midland, TX
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    Re: Sealing Natural Rock Waterfall/Spillway

    Quote Originally Posted by chiefwej
    SWG and limestone do not get along well.
    why is that? research I've done shows limestone does not dissolve in saltwater. are you suggesting if we go with the SWG we need to seal the spillway also?
    12,000 gal IG plaster saltwater pool w/ spa Build in Progress
    Pentair SuperFlo Pump, Triton II Sand Filter, MasterTemp Heater
    CompuPool CPSC24 SWG

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    chiefwej's Avatar
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    Re: Sealing Natural Rock Waterfall/Spillway

    My pool builder designed and built my pool as a salt pool. Based on his recommendations we used no stone of any kind. All stone can be be damaged by salt water. Some more than others, and some quicker than others. Texas limestone is subject to salt degrading it. I've seen limestone erode and watched flagstone flake and fall apart after six or seven years exposure in neighbor's SWG pools.

    When my pool was built the PB said stone or salt, you can have either, but not both. I picked salt.
    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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    Join Date
    Apr 2013
    Location
    Midland, TX
    Posts
    28

    Re: Sealing Natural Rock Waterfall/Spillway

    ours isn't Texas limestone. the guy at the stone yard told me it was from Iowa
    12,000 gal IG plaster saltwater pool w/ spa Build in Progress
    Pentair SuperFlo Pump, Triton II Sand Filter, MasterTemp Heater
    CompuPool CPSC24 SWG

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