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Thread: 100 degree water, new pool

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    amjohn's Avatar
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    100 degree water, new pool

    Another super newbie- my AGP is still a hole in the ground. We are supposed to be filling around Aug 3, but that date may slide to the 10th. Anyways, here in Texas, it is 100-105 daily, alternating between humid and dry. No one puts solar covers on this time of year (night or day) because the goal this time of year is to get your water below 100 degrees. Most people use some sort of in pool fountain to do that. How is that going to affect my chemicals?
    We are starting with PristineBlue (Copper based), because that is what came with the pool to start, but they also have us using a weekly All-Clear Calcium Hypochlorite Shock (or will be once we have water) rather than the Pristine company shock, because of the incredible number of things (bugs, frogs, rats, birds, possums, skunks, snakes, etc) that get into pools here and the high heat (You don't want to move here). We will use the solar cover in the spring and fall to extend the season, and when the pastures around the pool are being mowed (lots of flying stuff in the air).
    I did the calcium hardness test on our water as it comes out of the tap and it is low (70) so , based on what I read, we should be able to use the Hypo for a little while before we get too much built up in the system. The book for PristineBlue recommends TA of 50-90 (my water is 80-90), ph of 7.2-7.6 (my water is 7.5-7.6ish) and calcium hardness of 100-300 (my water is 70). The book actually recommends not using cal-hypo shock, but the store says I can get away with it. Once the big tub of Hypo is gone, I am considering other non-calcium options, such as bleach. What do you think?
    I am not married to the PristineBlue system either, it is just what was available to me when I bought the pool, and am looking into options that can survive our extreme temps and extreme weather changes.
    28 ft round Doughboy Sand Dollar II AGP, Aug 2008: 4 ft shallow, 6ft deep end: 24K gal approx Hayward Power-Flo Matrix
    1&1/2-HP 2-SPD Pump, Hayward 27-Inch Sand Filter with a little DE -(2) 4ftx20ft Solar Bear AGP Panels w/ Goldline auto-controller, 50ppm Borates And some day, maybe this year, a DECK!!!

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    JasonLion's Avatar
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    Re: 100 degree water, new pool

    Welcome to TFP!

    A fountain will provide aeration. That makes it a little more important to keep the TA level towards the lower half of the recommended range.

    You do not want to put copper into the pool. Copper can cause unsightly stains. Best to just avoid it in the first place.

    You might want to do some reading at Pool School.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    amjohn's Avatar
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    Re: 100 degree water, new pool

    We will put the fountain in as soon as the water temps go up (about a week). How do we lower the TA without dramatically lowering the PH? Our water is alkaline, as is our clay ground (wouldn't exactly call it soil). I am using the TF100 test kit. Full set of initial numbers on water out of tap:
    FC 1
    CC 3
    TC 4
    ph 7.6 ish
    TA 80-90 (two different tests- two different readings)
    CH 70
    CYA -no reading, stayed clear all the way up the tube
    28 ft round Doughboy Sand Dollar II AGP, Aug 2008: 4 ft shallow, 6ft deep end: 24K gal approx Hayward Power-Flo Matrix
    1&1/2-HP 2-SPD Pump, Hayward 27-Inch Sand Filter with a little DE -(2) 4ftx20ft Solar Bear AGP Panels w/ Goldline auto-controller, 50ppm Borates And some day, maybe this year, a DECK!!!

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    JasonLion's Avatar
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    Re: 100 degree water, new pool

    Lowering TA takes a while. Given where your numbers are starting, there is no reason to be in a hurry. Just lower the PH to 7.2 any time it gets up to 7.6 or higher, and in a week or two, with a fountain running, your TA will be down where you want it.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    duraleigh's Avatar
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    Re: 100 degree water, new pool

    Hi, Amjohn,

    Welcome! For sure, avoid the Pristineblue.....just don't even get started.

    One thing to add to Jason's post......a strong, hi-volume fountain will cool your pool so well you'll have to shut it off from time to time.....really!!
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
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    Re: 100 degree water, new pool

    Another very happy fountain user! I'm in N. Dallas, our water was starting to get around 90+, put the fountain in, running during my night time cycle and I'm at a very comfy 87!
    My pool works thanks to TFP

    Please support the site! pages/supporters/

    It's cheaper than your first trip to the pool store!

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    Re: 100 degree water, new pool

    uwimage,

    Hijacking the thread a little but you just might find more cooling in the mid to late afternoon when the relative humidity is the lowest. Mine gets downright chilly if I run it about that time.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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