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Thread: New Pool Installed 4/19 ~ Filled, Now What?

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    Join Date
    Mar 2016
    Northern Indiana

    New Pool Installed 4/19 ~ Filled, Now What?

    New pool installed last Tuesday (4/19) and after being out of town a few days, it's finally filled up. What's my next move? I was proactive and bought the TF-100 test kit and performed some of the initial tests that are usually recommended.

    pH - 7.8
    TA - 140
    CH - 325

    Other info that may be helpful: I live in NW Indiana, so we have cool nights still and I don't see us using the pool until Memorial Day weekend. Thanks for the help.....looking forward to really becoming a pool owner!
    Embassy 24' AG Pool ~ 13,500 Gallons ~ Vinyl ~ Sand Filter (Hayward 1.5hp) ~ Center Drain ~ City Water

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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: New Pool Installed 4/19 ~ Filled, Now What?

    Welcome to TFP!!!

    Use PoolMath to determine how much bleach to add 2ppm of FC into the water ASAP.
    Get 30ppm of CYA dissolving in a sock in the skimmer, squeeze often to get it to dissolve.
    Assume your CYA level is 30ppm, and maintain adequate FC levels daily according to the FC/CYA Chart.

    Have you discovered Pool School yet? Start with these:
    ABCs of Water Chemistry
    Recommended Pool Chemicals
    How to Chlorinate Your Pool
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    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: New Pool Installed 4/19 ~ Filled, Now What?

    Welcome to TFP and congrats on the new pool!

    Please update your location in your profile so the state shows up over there <---- with every post. Climate is an important factor when we are helping you with your pool.

    Your TA is a tad on the high side which will tend to make your PH rise. Test your PH every few days until you understand how it behaves. Lowering your PH with muriatic acid will also lower your TA over time. It is important to keep your PH at 7.8 or lower. When it gets to 7.9/8.0 lower it to 7.5.
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    Mod Squad kimkats's Avatar
    Join Date
    Jul 2012
    Tallahassee, FL

    Re: New Pool Installed 4/19 ~ Filled, Now What?

    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit, Become a TFP supporter!

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: New Pool Installed 4/19 ~ Filled, Now What?


    It's pretty easy since you're starting with fresh water and hopefully no algae.

    First off, with zero CYA, target FC is 3. So add 60 ounces of standard 8.25% bleach or its equivalent. You can eyeball half a jug. Just pour that in front of a return with the pump on so it disperses and mixes.

    To protect that chlorine you need CYA aka Stabilizer. Targeting 40, poolmath calls for 72 ounces - 4 lbs. CYA granules are sold in either 4 or 5 lb canisters. Get whatever size they have at your local big box hardware store or pool store. 4 lbs will take you to 36; 5 tp 44. Either is acceptable. Pour the whole thing in an old sock or nylon and set it in the skimmer basket or dangle it in front of a return so there's lots of water flow to dissolve it.

    By the time you're done fumbling with that, the bleach will be well mixed. Add a quart of 31% acid. Poolmath actually calls for a bit more to lower pH to 7.2, but just in case your pool isn't quite as big as the manufacturer claims, you don't want to overshoot. Pour that quart in front of the return.

    Now go herd the kids inside and get them changed. By the time that battle is done, the pool's ready to swim in. Probably too cold for you, but the kids'll insist it's fine through blue lips.

    The CYA will take a couple days to dissolve completely. Day one, you have none, so target 3 FC. Day two most if not all the CYA will be dissolved, so assume it's around 40 and target 5 FC.

    Day three, the sock should be empty, so remove it. You might need a pH adjustment again. You want to target about 5 for the FC. The goal is to add just enough each day so that FC doesn't dip below the minimum for your CYA before you test and dose again. In a few weeks, it will become very predictable.

    That's it.

    Pool School - Recommended Pool Chemicals tells you what chemical does what and how to add it
    Pool School - PoolMath explains how to use poolmath to figure how much
    Pool School - Basic Pool Care Schedule tells you what to do and when.
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  6. Back To Top    #6

    Join Date
    Mar 2016
    Northern Indiana

    Re: New Pool Installed 4/19 ~ Filled, Now What?

    Thanks for all of the quick replies! Richard320 helped in a big way because I now confidently know how to use PoolMath. I thought I knew what I was doing, but plugging info in and coming up with your recommendations has boosted my confidence.

    Initial steps that Richard320 laid out are complete......I'll be testing and squeezing a sock over the next couple of days to identify my next steps!

    Embassy 24' AG Pool ~ 13,500 Gallons ~ Vinyl ~ Sand Filter (Hayward 1.5hp) ~ Center Drain ~ City Water

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