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Thread: Newly-surfacing Fiberglass Pool

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    Newly-surfacing Fiberglass Pool

    Last week I posted about a "partial drain" & refill after a major crack occured in our Fiberglass pool. Things took a turn for the worse that is resulting in us just biting the bullet and redoing the pool ... (yes, KA-CHING !!) the only silver lining is that it is end of season, oh and the Coping was separating from the pool. Upon draining it, we found yet 2 more smaller cracks -- the pool construction company told us that those cracks likely is what started all of this mess .... they leaked water between the Fiberglass and underlining Gunite which likely allowed some movement underneath .. (not sure if I buy that, but OK ..) This will also give us a chance to get a working DRAIN and a larger skimmer with Vacuum attachment, and an Overflow, and finally fix the coping.

    Anyway - my main point to post this is I'm wondering if there are any special "start up" processes that we should consider with this being New Fiberglass? In my previous post I was told for the "partial drain" just to add Bleach, stir it up and start monitoring the other tests (CYA, et al). Would that still be the best approach? Or considering this is end of season and we will NOT be swimming for another 6 months or so should we approach this more aggressively? Is there some special "start up" process for NEW Fiberglass like there is for new PLASTER? (I didn't see anything in Pool School pertaining to that.)

    How would you deal with this after the initial water starts filling it? Thanks all ... (PS, I'll snap pics alomg the way).
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    Re: Newly-surfacing Fiberglass Pool

    No real special requirements at all. You will want to bring all your parameters within the ranges suggested in Pool School but there is nothing unusual about new fiberglass.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Newly-surfacing Fiberglass Pool

    Cool .. Thanks
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    UnderWaterVanya's Avatar
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    Re: Newly-surfacing Fiberglass Pool

    I'd suggest this: pool-school/temporary_pool_guide

    It gets your chemistry up and running quickly and might help you get there before closing easier than just using CYA and Bleach as the initial chemicals. Dichlor may suck for long term use - but it makes for a good startup process for a new pool.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Newly-surfacing Fiberglass Pool

    Thank you ..
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    UnderWaterVanya's Avatar
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    Re: Newly-surfacing Fiberglass Pool

    Quote Originally Posted by cody21
    Thank you ..
    You're welcome. If you lived close by I probably have the 20lbs of Dichlor you'll need with this method... purchased before I understood what I actually needed!

    Another option is to do both processes - maybe dichlor days 1-2 while CYA hangs in a sock in front of a return for the remaining 15ppm. Choices are good...
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Newly-surfacing Fiberglass Pool

    lol .... I actually have a full bag of unopened CYA that I bought 2 months ago.. So I'll probably just go with that ... The thing I'm having no luck finding is 20 MULE TEAM BORAX (to bring up the PH). I've searched Target, Lowes, WalMart ... nada ... I may just have to order some online I guess.
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    Re: Newly-surfacing Fiberglass Pool

    PS - so hopefully a final question: The Fill time of the new pool will take days before it gets up to the level of the Skimmer/Pumping through the Filter. Should I just add a bunch of Chlorine or Polyquat 60 to the water as it's filling and stir it with a brush? Or just dump some Dichlor into it to begin with? The water temp will be Tap water temp (50 or 60?) - and we have no plas to SWIM after it fills ... we're into closing time anyway - and just plan to maintain it over winter (northern California - no freezing). (The more I re-read the "Beginners Guide" link above the more I'm leaning towards just going with the Dichlor method vs. CYA + Ch)
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    UnderWaterVanya's Avatar
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    Re: Newly-surfacing Fiberglass Pool

    Quote Originally Posted by cody21
    lol .... I actually have a full bag of unopened CYA that I bought 2 months ago.. So I'll probably just go with that ... The thing I'm having no luck finding is 20 MULE TEAM BORAX (to bring up the PH). I've searched Target, Lowes, WalMart ... nada ... I may just have to order some online I guess.
    Food Lion, BiLo, and other grocery stores carry it here - you might ask the managers if they can get it before just ordering on your own.

    Another option might be available; what is your fill water pH/TA/CH?

    If the TA isn't too high and the pH need is modest you might be able to use Washing Soda - it doesnt raise pH without raising TA but if the need fits you might be able to get most of the way there - add some aeration (fountain?) and you might not need the 20 Mule Team.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    UnderWaterVanya's Avatar
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    Re: Newly-surfacing Fiberglass Pool

    Quote Originally Posted by cody21
    PS - so hopefully a final question: The Fill time of the new pool will take days before it gets up to the level of the Skimmer/Pumping through the Filter. Should I just add a bunch of Chlorine or Polyquat 60 to the water as it's filling and stir it with a brush? Or just dump some Dichlor into it to begin with? The water temp will be Tap water temp (50 or 60?) - and we have no plas to SWIM after it fills ... we're into closing time anyway - and just plan to maintain it over winter (northern California - no freezing). (The more I re-read the "Beginners Guide" link above the more I'm leaning towards just going with the Dichlor method vs. CYA + Ch)
    Can you use your vacuum hose and get circulation going with the skimmer and vac hose? If not then you certainly can use dichlor or bleach and simply use the brush a couple times a day to keep it stirred up. Dichlor is easy to get started - but if you already have the CYA - you could try premixing it in a bucket - maybe only 1/4 of what you need at a time so you don't overwhelm the volume of water you have.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Newly-surfacing Fiberglass Pool

    The Vacuum connects to the Skimmer, so yea, probably ... I just need to make sure the Filter is just recirculating though, right? Good thought about just disolving some CYA in a bucket. I might as well use it since it's just sitting there, along with Bleach.

    thanks ...
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    UnderWaterVanya's Avatar
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    Re: Newly-surfacing Fiberglass Pool

    Quote Originally Posted by cody21
    The Vacuum connects to the Skimmer, so yea, probably ... I just need to make sure the Filter is just recirculating though, right? Good thought about just disolving some CYA in a bucket. I might as well use it since it's just sitting there, along with Bleach.

    thanks ...
    Recirc or filter should work - no reason not to filter that I can think of. Your hose may leak so be sure to watch and test; swivel (if any) should go on the underwater side. The returns higher up on the walls are going to do some serious aeration also so you may not need any Borax! Just be sure you have everything pointed so it isn't spraying out of the pool.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Newly-surfacing Fiberglass Pool

    Got it ... thanks again.
    30,000 Gal FIBER GLASS (over Gunite Plaster) Pool, Dolphin Nautilus PLUS Robot, (2) Cartridge Filter System (old), 1/2 HP Pump, Full Sun, Solar Heated, TF-100 Test Kit.

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    UnderWaterVanya's Avatar
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    Re: Newly-surfacing Fiberglass Pool

    Quote Originally Posted by cody21
    Got it ... thanks again.
    Happy to help. But I want pictures of the returns blowing with the hose in the deep end! Better still a short movie!
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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