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Thread: IG Vinyl: Liner Replaced, Fresh Water, now what?

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    IG Vinyl: Liner Replaced, Fresh Water, now what?

    All,

    Just had IG vinyl liner replaced, and water is being added. I saw a post for a new plaster startup, but not
    a new vinyl...of course I'll clean up the DE grids in the filter and so on....but how long should the water
    circulate before I start testing, and balancing ?

    Pointers to another thread are welcome, I couldn't find any.
    22,000 Gal IG Vinyl
    Sta-rite SD75 DE filter
    Solar Cover

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    Mod Squad JohnT's Avatar
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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    The water doesn't have to circulate at all to test, but don't add anything until the pump is in operation so the chemicals can circulate and not sit on the liner. If it's going to take a long time to get it full, you can put some bleach slowly into the stream of water entering the pool to keep algae from getting started.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    Thanks John T. It's not taking long to fill, we're having pool/bulk water delivered. I don't want to 1) take this much from my well, and 2) run the well pump continuously for however long it's going to take. It will be full by 5PM today.

    If it matters, I'll be moving to a SWG sometime later this season. Getting all this scheduled was a complete pain, had lots of rain between repair stages (I'll try to post pics later) and I couldn't deal with one more thing at this time.
    22,000 Gal IG Vinyl
    Sta-rite SD75 DE filter
    Solar Cover

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    duraleigh's Avatar
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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    Put a small jug of Clorox in your pool this evening.

    Can you post test results? If you don't have a kit, please get some tests from the pool store (don't buy anything) and post those results up here. You will receive a lot of good advice.

    Until you can post your tests, please add a small jug of clorox each evening....it'll keep your pool sanitary and prevent an algae bloom.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    Thanks for the tip. I am familiar with the local pool store for tests...and have ordered the TFP kit. I will say thanks to reading this board last year before heading there for tests, I was able to deflect comments about phosphates...

    Right now I am running the filter on recirculate. I am probably going to replace the grids in the DE filter just to make
    certain I have no remaining metallic crud from Eclipse (which, actually, I haven't used since 2007 - again, thanks to this
    forum).
    22,000 Gal IG Vinyl
    Sta-rite SD75 DE filter
    Solar Cover

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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    Here are the test results from the pool store (my new TF kit hasn't arrived yet):

    Pool: 23000 gallons, vinyl
    Total Alkalinity; 75ppm
    ph: 7.6
    Total Hardness: 250 ppm
    Iron: 0.0 ppm
    copper: 0.3 ppm
    Free Chlorine: 0.0 ppm
    Total Chlorine: 0.0 ppm
    Cyanuric Acid: 13 ppm
    Phosphates: 100 ppb

    I think I know to ignore anything about phosphates....I am surprised to see Cyanuric Acid in a fresh fill but if we have acid
    rain and/or the source included municipal water, maybe that explains it.

    So I think I need to get the Total Alkalinity up a bit, and chlorine as well of course. Wondering if it would be OK to use stabilized
    chlorine now, not adding any additional CYA...
    22,000 Gal IG Vinyl
    Sta-rite SD75 DE filter
    Solar Cover

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    Butterfly's Avatar
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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    Hi John,

    I suggest you leave the TA alone for now. Recommended Levels (Pool School) are 70 to 90.

    The CYA test makes no sense. Unless you put some CYA in your pool, it is not in there.

    Assuming you are going to go the bleach/liquid chlorine route, you need to add enough CYA to get to about 30 for now.
    Add enough bleach/lq to keeep your FC around 2ppm and 24 hours after you add your CYA, adjust the FC level accordingly. See the Chlorine/CYA Chart in my sig.
    ETA: oops, yes you can use the stabilized chlorine for now. Keep track of the CYA it will add to help you verify your CYA test once you get your kit.

    It would be very helpful if you added your equipment specs in your sig. Go to the User Control Panel (upper left under TFP logo), select Profile, then Edit Sig.

    I just noticed that you will be adding a SWG later, all the more reason to leave the TA alone!

    Your pH is perfect 8)
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what? TEST RESULT

    Here are the results of the first test with the TF100 kit:

    FC: .5
    CC: 0
    TC: .5
    ph: 7.3
    T/A: 120
    CH: 120
    CYA: N/A

    So a little different that those from the pool store, with CYA being the most glaring. Is the liquid for that test supposed to have
    a tint? Mine did not, and I was able to see the black dot until the tube was full...

    Just added some CYA that I had from last year. I need to get that up, I know, and the water is starting to get a slight
    green tinge to it, so the bleach and stabilized chlorine are shot.
    22,000 Gal IG Vinyl
    Sta-rite SD75 DE filter
    Solar Cover

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    frustratedpoolmom's Avatar
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    Re: IG Vinyl: Liner Replaced, Fresh Water, now what?

    The test in the kit won't register below 20. Assume you have zero for now. How much did you add/what was your target? After 24 hours assume it's in there, but don't waste your testing reagent, you shouldn't bother to test for it for at least 5 days. You want at least 30, 50 is better.

    Use bleach and get your chlorine up, if your water is greenish - use 10 as your FC target. Other numbers look ok.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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