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Thread: Weighing Chemicals

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    Join Date
    May 2013
    Marietta, GA

    Weighing Chemicals

    FC - 2 ppm
    TAC - 2
    pH - 7.6
    TA - 60
    CH - 200
    CYA - 40
    Phos - 300 ppb
    Salt - 2100

    The above numbers were given to me today from Leslie's. According to them I need to:

    Add three 40 lb. bags of salt
    Add one gallon of Instant Pool Water Conditioner
    Add eleven pounds of Alkalinity Up
    Add 20 fl oz of PHOSFree

    These recommendations seem in line with what the PoolCalculator came up with.

    Two things, if I may:

    The prices of their products is astronomical ! Can anyone please recommend different brands of chemicals or substitutes like baking soda or something?

    Secondly, if I buy a 35lb. drum of Alkalinity Up, how do you weigh it out so that I put in 11 pounds? a scale ?
    19,800 gallons, fiberglass IG, sand

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana

    Re: Weighing Chemicals

    Alkalinity Up is baking soda. But you probably don't need any.

    Liquid Stabilizer is unnecessarily expensive. Use the granules.

    You don't need the PhosFree

    If you listen to Leslie's, you are guaranteed to have problems and spend a lot of money while causing them. They are worse than clueless.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Weighing Chemicals

    The only time you would want to raise the TA that much is if you are using trichlor tablets as your primary source of chlorine. They are very acidic, and the high TA helps keep the PH from getting out of control too quickly. With any other primary source of chlorine you want the TA around where it is now.

    Also, on the salt, I'm not sure I would trust a pool store salt measurement. Raising salt is fairly easy, but lowering it if you go too high is difficult. Assuming you are raising salt because you have a salt water chlorine generator (SWG), does the SWG tell you that the salt needs to be raised? If not, don't raise 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

  4. Back To Top    #4
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Elverson Pa.

    Weighing Chemicals

    I see you started a thread back in 2013 about the the best test kit out there
    Did you not get one ? The test results from Leslie's can be very subjective. The CYA test is usually one the pool store mess's up bad. If you haven't gotten one of the recommended test gets I highly suggest you do if you want to keep your water chemistry in order and not depend on what the pool store suggests. They have a habit of taking your money and giving bad advice.
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  5. Back To Top    #5

    Join Date
    Jan 2013
    Friendswood, TX

    Re: Weighing Chemicals

    Technically the advice above has already saved you almost the price of the TF-100 I believe.

    I have one after reading just a few posts on here. The test kit and the advice has saved me probably $100 over the last couple months.
    19x40 IG including 10' BE, 18,000 gal, plaster, 48 SF DE, 1.5HP pump, AquaPure SWCG, Ozonejoe 30MR, Rockwaterfall, LED light, TF-100 Fill date 11/21/2014
    My ODK Build | My Pool Build | If You're From Texas Vote Here

  6. Back To Top    #6
    chiefwej's Avatar
    Join Date
    Jun 2011

    Re: Weighing Chemicals


    You will need to decide if you want to join the thousands of pool owners who use the tools and methods recommended here, and learn how to manage your own pool. That means accurate testing with a good test kit, learning that you only add what the pool needs, and rejecting any advice from pool stores. It starts with ordering a good test kit (the TF-100 is highly recommended), and reading the info contained in "Pool School". That's the button on the upper right of this page.
    Tucson, AZ
    19k gallon Pebble Tec play pool/spa, Pentair Intelliflo VS (3 hp) 011018, Super II 2hp (for spa), Aqua Rite T-15 SWG, Pro Grid 60 DE filter, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

  7. Back To Top    #7
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Weighing Chemicals

    Your TA is fine according to the recommendations in No Alkalinity Increaser (Baking Soda at 5X cost but in a nicer package) needed.

    I wouldn't trust the CYA reading at all - it's the hardest to do and pool stores are notoriously bad about getting it wrong. And if you overdo it, the only way to remove it is by water replacement. What does your test kit say?

    The phosphates don't matter.

    And if your SWG is happy with the salt level, you should be, too.
    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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