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Thread: Algistat all gone?

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    Algistat all gone?

    Used last of a bottle when waiting for fill. Increased water by 20k gallons , been adding bleach at night. Bright and sunny right now just wondering what to add first , start adding ph decrease and alk now or start with cya and do chlorine at night.
    Fc .03
    Tc .26
    Cc .23
    Ph 8.1
    Ta 63
    Cya 3
    33k, IG vinyl, Hayward S210T sand, 1 hp super pump, H250 heat, Tigershark QC robot, slide

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    Mr Bruce's Avatar
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    Re: Algistat all gone?

    I'd add a speedstir to your test kit order TFTestkits.net
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Mod Squad pooldv's Avatar
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    Re: Algistat all gone?

    Add CYA pronto.
    Add FC everytime it drops to minimum for your CYA, FC/CYA Chart.
    Always maintain PH between 7.2 and 7.8
    Leave TA where it is, it is fine.

    And definitely get a tf-100 from http://www.tftestkits.netand stay out of the pool store.

    Do a little reading here
    ABCs of Pool Water Chemistry
    Pool School - Getting Started
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    Re: Algistat all gone?

    Why are you using an algecide? We recommended PolyQuat 60 and only as insurance (going on vacation) or special circumstances like doing an asorbic acid treatment.

    Do you have one of the recommended test kits? You numbers look a little weird. We don't trust pool store numbers. We recommend the TF-100 and here is a comparison of kits: Pool School - Test Kits Compared

    You need to adjust PH first, add the CYA by putting it in sock and hanging it in front of a return. 8.1 is sometimes the limit of the PH test, so your PH could be higher, so test afterwards to see if you need more. You don't need to wait before adding the CYA. Put the CYA in a sock and hang it in front of a return. Give it a squeeze occasionally.

    You can add chlorine 30 minutes after adding the acid. What form of chlorine are you adding? We recommend liquid bleach which can be found cheaply at Wal-Mart. You can get the 8.35% or 10%. Other forms of chlorine are more expensive and add to the other chems, either calcium or CYA.
    Karen
    33K IG w spa plaster, Pentair 1HP Whisperflo, DE Filter, SWG CircuPool RJ-60, Dolphin Triton Plus, Raypak Dig 336K BTU, TF-100.
    Pool Math Chlorine / CYA Chart SLAM - Shock Level And Maintain
    2017 replaster/retile

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    Re: Algistat all gone?

    When you say "put cya powder in a sock and hang it in front of a return" do you mean a pool side jet return? would pitting sock in skimmer suffice? Also is liquid CYA just as equally efficient as powder ? ?
    Blue haven kidney style 16,000 gal gunnite including Spa, test Kit TF - 100
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    Re: Algistat all gone?

    Have tf-100 xl with yes the speedstir ha. These are from store as I'm still learning to use kit properly. Was given a ton a baquacil products only added some algistat when water sat under construction.

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    Re: Algistat all gone?

    Quote Originally Posted by 63john View Post
    When you say "put cya powder in a sock and hang it in front of a return" do you mean a pool side jet return? would pitting sock in skimmer suffice? Also is liquid CYA just as equally efficient as powder ? ?
    For CYA, yes, most people like to hang their sock in front of a pool side jet return. I prefer the skimmer method for a couple of reasons. Liquid is fine just 2x the cost.

    Quote Originally Posted by 1CrAzYsUmMeR View Post
    Have tf-100 xl with yes the speedstir ha. These are from store as I'm still learning to use kit properly. Was given a ton a baquacil products only added some algistat when water sat under construction.
    Stay out of the pool store

    Are you planning on having a baquacil pool?
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Re: Algistat all gone?

    thanks Mr Bruce once last Q, does the skimmer method send the CYA to the pool or to the cartridge filter which then sends it back to the pool ?
    Blue haven kidney style 16,000 gal gunnite including Spa, test Kit TF - 100
    Built 2000 deep end 7.5 feet, 2 steps at shallow end
    Original SWG then convert to chlorine
    Pentair Clean & Clear cartridge filter (4)
    Blue Haven Teledyne Laars Platinum II heater

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    Mod Squad pooldv's Avatar
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    Re: Algistat all gone?

    Avoid baquacil like it is anthrax. Read through the baquacil forum if in doubt.

    We trust your test results, not the pool stores.
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    Re: Algistat all gone?

    If it's in the skimmer you want the pump running, so that is through the pump/filter and then back to the pool. That is another advantage of hanging a sock, you don't have to run the pump continuously until it dissolves.
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Re: Algistat all gone?

    Socks full and hanging, gonna add some ph decrease now, then go ahead and add some chlorine now or wait? No stores for me tfp all the way! Yes been using liquid chlorine 12.50% and plan on just 8.25 after Chem is ok

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    Re: Algistat all gone?

    If you can get 12.5% for a good price, that's is just fine to use. Muratic acid is better than pH down, it's at Home Depot/Lowes/paint stores and maybe Wal-Mart.

    Give a full test with your TF-100. Trust your testing, ask questions if need be!
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Re: Algistat all gone?

    It is best to wait 30 minutes between the time you add the ph decrease and the chlorine. Acid+chlorine will make chlorine gas which can be deadly.

    FYI, you can buy muratic acid at Lowes or Home Depot to reduce PH at a fraction of the cost of the pool store "PH decrease".

    Either 12.5%, 8.25% or 10%, it is your choice, but get the freshest you can find. The stronger the bleach the faster it will degrade, so make sure to check the date codes on the 12.5 and 10% stuff. You can get the 8.25 or 10% stuff at Wal-Mart.
    Karen
    33K IG w spa plaster, Pentair 1HP Whisperflo, DE Filter, SWG CircuPool RJ-60, Dolphin Triton Plus, Raypak Dig 336K BTU, TF-100.
    Pool Math Chlorine / CYA Chart SLAM - Shock Level And Maintain
    2017 replaster/retile

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