Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: back from vacation/Found odd rock in pool

  1. Back To Top    #1

    Join Date
    Jun 2015
    Location
    harker heights
    Posts
    3

    back from vacation/Found odd rock in pool

    Background info first:
    16' Intex AG, salt water chlorinator, cartridge filter

    Before leaving for 10 day vacation my levels were within range. I decided to avoid any swamp issues by pouring an unknown quantity of bleach to shock the pool (approx 30oz) and covered with factory cover.

    When I returned, the cover was mostly inside the pool, blocking the return and limiting the intake. The filter was mostly clean, so I sprayed it off. The pool was filled with 1 large backswimmer, numerous small bugs that could swim excellently and alot of surface debris. I plugged in the skimmer and tested the water. The results were:
    FC 6.8
    CC .2
    Ph 7.4
    TA 130
    CH 110
    Cya 75

    After running the skimmer for a few hours the backswimmer was gone and after a day all bugs disappeared. I though "GREAT". But while vacuuming I noticed something odd, causing this post.

    In the center of the pool, down on the bottom, I sucked up a ping pong size, white, ball like substance. It was rock like and slightly hard. I was able to step on it and broke it up. Once broken, the substance was sandy.

    What is it??? Calcium?
    How did it get in the pool? Is it something I am doing wrong?

    The water is beautiful. Clear. Clean. Refreshing.

    Any guesses?

    Butch

  2. Back To Top    #2
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
    Posts
    8,995

    Re: back from vacation/Found odd rock in pool

    Stray 3" trichlor puck?
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  3. Back To Top    #3

    Join Date
    Apr 2013
    Location
    Sacramento, CA
    Posts
    2,769

    Re: back from vacation/Found odd rock in pool

    I doubt it was calcium. Its hard and mine has a yellow tint.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

  4. Back To Top    #4

    Join Date
    Jun 2015
    Location
    harker heights
    Posts
    3

    Re: back from vacation/Found odd rock in pool

    Only if a bird dropped it in, TFPM only for this pool.

  5. Back To Top    #5

    Join Date
    Apr 2013
    Location
    North OKC Area
    Posts
    298

    Re: back from vacation/Found odd rock in pool

    Sidewalk chalk?

Posting Permissions

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