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Thread: Great readings but always something collecting on the bottom

  1. Back To Top    #1

    Join Date
    Jul 2014
    Location
    Cedar Park, TX
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    113

    Great readings but always something collecting on the bottom

    First off this has been a great summer - first full summer with the pool and this method makes it easy to maintain.

    With that being said we always had some small accumulation of what looked like dead algae each day. The numbers were perfect always within spec. In the last week or two I made a comment that the water doesn't seem to be as clear as it once was. Checked the numbers no CC everything is just right. Today I got home from a trip. The accumulation was significantly more. My DW has said in the past "maybe its the ladder and those bricks that are in there for weight". I disagreed - the ladder is always under water - in the good clean chlorinated water. How could anything grow in there. Today I gave in. I pulled the ladder and the bricks (they are in there for weight). Yep lots of green in the nooks and crannies of the ladder and the bricks feel slick as well. I just brought the pool up to SLAM level - glad I had this site and am not depending on the pool store. If I did I would be expecting a truck load of phosphate remover.

    I know you like photos so here is the ladder and the pile of bricks. Enjoy.

    bricks.jpg
    ladder.jpg
    12600 gallons, 24 foot round above ground
    Hayward Sand filter, Hayward Powerflo 1.5 hp Single Speed pump

  2. Back To Top    #2
    Texas Splash's Avatar
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    Jun 2014
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    South-Central Texas, Marion/San Antonio
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    Re: Great readings but always something collecting on the bottom

    A perfect illustration of how ladders can be a stronghold for algae. Thanks for sharing.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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  3. Back To Top    #3

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    Aug 2014
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    Northern IL
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    Re: Great readings but always something collecting on the bottom

    Do you have a light in that pool? Have you checked under your skimmer weir?

  4. Back To Top    #4

    Join Date
    Jul 2014
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    Cedar Park, TX
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    113

    Re: Great readings but always something collecting on the bottom

    Yeah the light and the weir were both clear.
    12600 gallons, 24 foot round above ground
    Hayward Sand filter, Hayward Powerflo 1.5 hp Single Speed pump

  5. Back To Top    #5

    Join Date
    Aug 2014
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    Northern IL
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    Re: Great readings but always something collecting on the bottom

    Great. On your way to clear again!

  6. Back To Top    #6

    Join Date
    Jun 2014
    Location
    Oslo
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    120

    Re: Great readings but always something collecting on the bottom

    The pores of the bricks and the inside part of the ladder are small vlomes of 0 flow, therefore if clorine is low there it will remain low and algae can grow. As soon as the water gets some criculation, algae is getting killed.
    South of France inground rectangular 17k pool - ruber membrane. Sliding dome, black thermal blanket covering 75% of the pool surface. Aqualux 3/4Hp pump, glass media sand filter, Zodillac robot, 110W UV-c lamp, Hayward brominator, Caliente 12kW heat pump.

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