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Thread: New pool owner, chemistry questions

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    New pool owner, chemistry questions

    Just purchase a 27' 52" AG vinyl pool and I have added two 1lb bags of Dichlor 57% with 35% available chlorine. I added that because it came with my pool and was aware that it could raise my cya very quickly. My FC=1, pH=7.8(maybe a little higher), TA=150, and my cya is 0. I have checked the cya two times using my new TF-100 kit and it has yet to even cloud up even a little. Just seeking some advice going forward. Planning on using bleach to maintain my CL level, but was trying to establish a cya level before I started.
    18600 AG vinyl, sand filter, 75gpm hydotools pump, city water

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    Mod Squad jblizzle's Avatar
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    Re: New pool owner, chemistry questions

    Welcome to TFP!!

    Check out PoolMath. Set your pool volume at the top and at the bottom you can enter 32oz of Dichlor and see that it would have added 6.5ppm of CYA ... that is why it is not showing up on the test.

    - - - Updated - - -

    So, you need to add more CYA and more FC. Easiest to track if you use the separate chemicals.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Richard320's Avatar
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    Re: New pool owner, chemistry questions

    Welcome!

    That was easy, huh? The good news is, it's easy to add more CYA. It's hard to get it out if you overdo it. There are some good instructions for using poolmath here.
    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: New pool owner, chemistry questions

    I have read that it takes a week for the cya to show up using the test, is that true. I am in a holding pattern because I don't want high cya, that sounds bad.
    18600 AG vinyl, sand filter, 75gpm hydotools pump, city water

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    Re: New pool owner, chemistry questions

    Yeah, as I'm wrapping up my 6th drain/fill session on the pool we obtained with our house purchase in January, I can tell you it's no picnic. Better safe than sorry with the CYA.


    25k Gal, IG Vinyl, 26" Sand Filter, Hayward 1HP (SP-2607x10), Installed late 90s? (bought house in 2015), K-2006 Test Kit w/ SpeedStir & extra reagents from TFTestKits.com (Buying TF-100 next year instead of Taylor refills!)
    Helpful Links - Pool School - Read Everything Twice! : SLAM Procedure to clean up a green monster : CYA-FC Relation Chart : Pool Math Calculator : My First Pool Opening

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    Azgirl71's Avatar
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    Re: New pool owner, chemistry questions

    I just wanted to say welcome to TFP. You have been given some great advice and as long as you follow it you will be swimming in no time.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Mod Squad jblizzle's Avatar
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    Re: New pool owner, chemistry questions

    Fill water has no CYA and you only added 6.5ppm with the Dichlor which would show up quickly. Only the granule CYA might take up to a week to dissolve and show up on the test.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: New pool owner, chemistry questions

    Thanks for the help. Sounds like I may use the rest of the free dichlor since it will increase cya, raise fc, and lower my ph. Does that sound like a reasonable course of action. If after the free stuff is gone I am planning on using the chemicals recommended here.
    18600 AG vinyl, sand filter, 75gpm hydotools pump, city water

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    Mod Squad pooldv's Avatar
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    Re: New pool owner, chemistry questions

    Welcome to TFP! Congrats on the new pool!

    Here are some intro Pool School articles
    TFPC for Beginners
    ABC's of Pool Water Chemistry

    Here are the Recommended Levels for your pool.
    Here are the Recommended Pool Chemicals
    Use PoolMath to figure out how much to add.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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