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Thread: What is this?

  1. Back To Top    #1

    Join Date
    Mar 2007
    Collierville, TN (near Memphis)

    What is this?

    Hey y'all. Since my pool has been done in February, I've had dust and dirt on the steps. I just assumed this was stuff blowing in the pool, but yesterday I picked it up. In addition to dirt and clay I found something strange. It actually looks like clear crystals. Like salt only larger. I do have a SWCG.

    FC 3.0
    ph 7.7 (I say 7.7 because it lives between 7.6 and 7.8 )
    TA 80
    Calcium 50
    CYA 30

    These numbers are almost always the same. Never had any algae. Vinyl liner

    What do you think?

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana
    My bet would be sand from the concrete on the deck.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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