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Thread: Steps immediately after refilling

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    Join Date
    Nov 2013
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    Las Vegas, NV
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    25

    Steps immediately after refilling

    Hi all. I searched pool school and read through some of the forum posts, but didn't find an answer so I figured I'd just ask. I recently drained my pool due to algae issue (and CYA around 100) and refilled it. After refilling, I ran tests to ensure pH, alkalinity, hardness, and FC were good. Everything checked out except FC was low (around 1). I've added some liquid bleach, plus I have Trichlor. The level is still a bit low, so I plan to bring it up to around 4, however it got me guessing on if I should have SLAM'd the pool immediately post-filling. Now I'm noticing a bit of build-up on the horizontal surfaces (steps, etc) that looks like a brown-ish "dust".

    I guess the bottom-line is I'm not sure what all I should have done post-filling. Any help would be appreciated!

    FYI - In-ground, Pebble-tec, 28,000 gallon w/ attached hot tub.

    Cheers,
    Bob
    28k IG Pebble Pool, Hayward Cartridge, Spa w/ Spillover, Hayward suction cleaner.

  2. Back To Top    #2
    Smykowski's Avatar
    Join Date
    Sep 2011
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    Gurnee, IL (North Suburban Chi-town)
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    3,065

    Re: Steps immediately after refilling

    Welcome to the forum!

    Yes, if you drained because of algae, you should have SLAMed it. Draining the pool fixes the CH and CYA, but there's still algae in the water that's left. As soon as you refill, the algae multiplies, and you're not any better off (algae-wise, at least).

    SLAM the pool now (the lower CYA will make it easier), and you will get it under control.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  3. Back To Top    #3

    Join Date
    Nov 2013
    Location
    Las Vegas, NV
    Posts
    25

    Re: Steps immediately after refilling

    Thanks! I did completely drain, but I know you can't get ALL the water out. I'll be sure to SLAM.
    28k IG Pebble Pool, Hayward Cartridge, Spa w/ Spillover, Hayward suction cleaner.

  4. Back To Top    #4
    linen's Avatar
    Join Date
    Jul 2010
    Location
    Twin Cities, MN
    Posts
    8,649

    Re: Steps immediately after refilling

    Welcome to tfp, rmoors510

    Please post a full set of test results and how you got them. See: http://www.troublefreepool.com/pool-...efore_you_post
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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