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Thread: What is this chemical??

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    Join Date
    May 2007
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    WNY
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    What is this chemical??

    My pool was officially opened yesterday(H2O-60 degrees-brrrrrrr!) Anyway, I checked the skimmer baskets after it was on a while and found one filled with something that looked like white lava rocks inside. I imagine it is something dissolving into the pool but what is it? Usually they leave the empty containers for me to dispose of but this time they didn't so I have no idea what it is. Any ideas? I was also ****** to fine they didn't shock the pool. They always used to. My FC was .5 today and it was crystal clear when we took the cover off. But I digress.

    Thanks!!
    23000 gal. 18 x 36 IG vinyl
    Jacuzzi Magnum Force 1.5 hp. pump
    Jacuzzi CFR 100 cartridge filter
    AutoPilot Digital 220 SWG
    LaarsLite 250 gas heater

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    duraleigh's Avatar
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    Re: What is this chemical??

    filled with something that looked like white lava rocks
    Broken up tri-chlor pucks? Any rounded edges on them?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad Bama Rambler's Avatar
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    Re: What is this chemical??

    I'd bet it's Trichlor like Dave said.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    WNY
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    Re: What is this chemical??

    I have a salt generator. They shouldn't be putting that in the pool. They were not puck sized. They were much larger with all irregular, jagged edges. There was not a smooth surface on them. I thought they were some sort of crystals or something. They are all dissolved now. Strange.
    23000 gal. 18 x 36 IG vinyl
    Jacuzzi Magnum Force 1.5 hp. pump
    Jacuzzi CFR 100 cartridge filter
    AutoPilot Digital 220 SWG
    LaarsLite 250 gas heater

  5. Back To Top    #5
    Mod Squad Bama Rambler's Avatar
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    Re: What is this chemical??

    They could have been cal hypo sticks. Even with a swcg they would have still had to put some chlorine in there to get the FC up some so the swcg could take over. swcg's aren't good at starting from zero FC.

    One of the reasons we advocate maintaining your own pool is so that you'll know what goes in it and why.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Join Date
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    WNY
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    Re: What is this chemical??

    I do all the maint. of my pool except opening and closing. As a matter of fact no one else in my family has a clue how to do it-not even DH. I gotta fix that. In all past years they have shocked the pool, added algaecide and a clarifier. Never what looked like hunks of broken concrete in the skimmers. My FC was .5 and CC 1 the day after the opening so I don't think it it was any chlorine and water was crystal clear when we took the cover off. Anyway, I was just curious as to what it may have been.
    23000 gal. 18 x 36 IG vinyl
    Jacuzzi Magnum Force 1.5 hp. pump
    Jacuzzi CFR 100 cartridge filter
    AutoPilot Digital 220 SWG
    LaarsLite 250 gas heater

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