Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: Added Algaecide ?

  1. Back To Top    #1

    Join Date
    Jul 2014
    Location
    Keller, TX
    Posts
    8

    Added Algaecide ?

    As Home Simpson would say ... "D'oh"

    I listened to the kid at Leslie's who, when I told him my water was turning a little green, advised a copper algaeside, and I already added it to my gunnite, chlorine 25,000 gal pool. My wife and kids and I all have brown hair. We have a tahoe blue quartz finish. Are you saying it could stain the pool? Only added 10 ounces.
    25,000 gal gunnite pool with spa, quartz finish. Chlorine Pool. Jandy Variable speed pump. Polaris 360 cleaner. Installed /2014.

  2. Back To Top    #2

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,637

    Re: Copper Algaecide

    Even though you have been around a while, since this is your first post: a belated Welcome to TFP!

    Could it stain? Absolutely. Will it? If that is all the copper you have ever added to your pool then probably not. You also probably won't see much difference in your green either since algaecide is more useful for preventing algae than killing a bloom in progress.

    A much better option to clear the green out of a pool is to perform the SLAM procedure. This involves bringing your FC level high enough in relation to your CYA level and keeping it there until everything is dead. It will require a proper test kit such as the k-2006 or TF-100. Do you have one of those kits?
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  3. Back To Top    #3

    Join Date
    Jul 2014
    Location
    Keller, TX
    Posts
    8

    Re: Copper Algaecide

    No, I just have a PENTAIR RAINBOW KIT.
    So, with CYA level of 60 (per Leslies today), do I understand to SLAM I need to raise FC to 24! Dang!
    25,000 gal gunnite pool with spa, quartz finish. Chlorine Pool. Jandy Variable speed pump. Polaris 360 cleaner. Installed /2014.

  4. Back To Top    #4

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,637

    Re: Added Algaecide ?

    Due to the buffering properties of CYA, 24 FC is actually quite swimmable when your CYA is 60.

    Unfortunately pool store testing is notoriously unreliable. Between inexperienced techs, lighting, and a myriad of other variables you rarely get accurate results. CYA is typically the worst. So while you are correct that if you are at 60 CYA you will need to raise your FC to 24, without doing your own CYA test you really can't be sure that is correct and without doing your own FAS-DPD chlorine test you won't be able to properly maintain your FC or perform 2 of the 3 tests required to conclude the SLAM.

    Generally in this situation the best advice is to get one of those test kits on order (they are rarely ever stocked locally) and put your pool in to a holding pattern by adding 1 gallon a day of liquid chlorine a day until you can accurately test.

    BTW, how are you currently chlorinating your pool?

    From my HTC One via Tapatalk
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •