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Thread: Opened pool last night

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    Opened pool last night

    So we opened our pool up last night and the water is clear.. I have a few leaves to vacumm out and littlle dirt but amazing. FIRST TIME EVER.. We filled it almost to where it needed but shut off and put the last bit in this am. Filter is running now for about 2.5 hours. went and got a water sample and here is my numbers
    fc 3.5
    cc .5
    ph 7.4-7.6
    alk 100
    cya ?? none or very little.
    On the cya I wonder if i need to wait til water has circulated a bit more to tell or not? I had like 40-50 last summer.
    So I guess I feel stupid because I dont know how much chlorine to put in right now. Am I suppose to shock this baby? and being I dont really no if i have CYA I am un sure how much to use. And could it be possible I have 3.5 fc after all winter ? LOL

    So if you could please advise..
    24 foot round above ground(installed 8/2011), 52 inches high, 13500 gallons, Hayward pump 1.5 hp, cartridge filter, former user of the backpac system from watsons, and use the Taylor k2006 test kit.

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    Richard320's Avatar
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    Re: Opened pool last night

    If the pool was closed properly and covered, yes, you can have FC left. If there's no algae to eat it and no sunlight to break it down, why not?

    If you really have no CYA, shock level is 10. It probably wouldn't hurt things to take it up once. That will take a jug and a little more of Clorox 8.25% according to poolmath.

    Did the CYA sample get cloudy at all when you mixed the reagent? If so, you have 20 CYA or less, but some, which is good, because it means you don't have Ammonia from CYA decomposing over the winter. There's been a lot of that this year.

    Recheck the FC & CC an hour or so after you added bleach, pump on. If CC is .5 or less, you don't have ammonia and can go ahead and raise CYA. Work up slowly. Maybe add 20 ppm now and recheck it in a week and add more if you need to. To add 20 CYA, poolmath says add 2 1/4 lbs of CYA (stabilizer) granules. Measure it out into a sock, tie it shut and set it in the skimmer or dangle it in front of a return until it's all dissolved.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Opened pool last night

    Thanks for responding so quickly- I added 128 ounces at about 1245pm and at 330pm i vaccummed and rechecked water
    fc 6.5
    cc 0
    ph 7.5
    alk 100
    CYA..?
    the black dot still shows when its full so i emptied it and filled with regular water to see difference and the cya water is slighty cloudy. It didnt look cloudy in the bottle i mixed it in though. maybe just a touch left in there. I am gonna dose it up with some bleach to 10 fc . i think ill add a touch cya. do i figure I am at 10?? and go to 30?
    24 foot round above ground(installed 8/2011), 52 inches high, 13500 gallons, Hayward pump 1.5 hp, cartridge filter, former user of the backpac system from watsons, and use the Taylor k2006 test kit.

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    Mod Squad jblizzle's Avatar
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    Re: Opened pool last night

    I would add about 20ppm of CYA, give it a week and retest.
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    Richard320's Avatar
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    Re: Opened pool last night

    Quote Originally Posted by jblizzle View Post
    I would add about 20ppm of CYA, give it a week and retest.
    To clarify - he means add the CYA to 20, and recheck it after it's had a week to dissolve and mix. You still need to check and maintain pH and chlorine daily!
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Opened pool last night

    so at 4 pm i added 72 ounces more bleach which should of brought me to 10 I jut went down and checked and i am at 8. NO cc though. Its not that hot nor very sunny . sun is in and out. little windy. so y would i eat up that much in 2 hours? its clear as a bell. diamond shimmering.. Maybe I should dose it higher through the night.

    - - - Updated - - -

    Quote Originally Posted by Richard320 View Post
    To clarify - he means add the CYA to 20, and recheck it after it's had a week to dissolve and mix. You still need to check and maintain pH and chlorine daily!
    so assume there is none and put zero in now box and 20 in target I am assuming?
    24 foot round above ground(installed 8/2011), 52 inches high, 13500 gallons, Hayward pump 1.5 hp, cartridge filter, former user of the backpac system from watsons, and use the Taylor k2006 test kit.

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    Richard320's Avatar
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    Re: Opened pool last night

    Quote Originally Posted by carolvk12 View Post
    so at 4 pm i added 72 ounces more bleach which should of brought me to 10 I jut went down and checked and i am at 8. NO cc though. Its not that hot nor very sunny . sun is in and out. little windy. so y would i eat up that much in 2 hours? its clear as a bell. diamond shimmering.. Maybe I should dose it higher through the night.
    It's not the sun, per se, but UV light that destroys chlorine. If you can get sunburned on a cloudy day, so can your pool. CYA acts as a sunscreen for the FC, and you have hardly any right now.

    It won't hurt to keep the FC up overnight. A buck or two of chlorine is cheap insurance.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: Opened pool last night

    Ok so I will go get some cya and add it in a sock tonight. Maybe Ill go to 15 tonight and see what I have come morning.

    I had 10 ounces right now so ill add that til I can get more of stablizer
    24 foot round above ground(installed 8/2011), 52 inches high, 13500 gallons, Hayward pump 1.5 hp, cartridge filter, former user of the backpac system from watsons, and use the Taylor k2006 test kit.

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    Re: Opened pool last night

    Well it held the last three hours - 😄


    24 foot round above ground(installed 8/2011), 52 inches high, 13500 gallons, Hayward pump 1.5 hp, cartridge filter, former user of the backpac system from watsons, and use the Taylor k2006 test kit.

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