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Thread: What have I got here? Water is clear, buttom of pool green.

  1. Back To Top    #1

    Join Date
    Jun 2009
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    Exton, PA
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    248

    What have I got here? Water is clear, buttom of pool green.

    Just opening up after the winter. I left it closed longer this year, because we took an early vacation. It will be consistent 90s this week, so I figure it's a good time to open her up.

    I had it covered all winter.

    Now, it smells swampy, and there are tiny tadpoles swimming around. The bottom of the pool is filthy with pollen, etc. but I've skimmed the leaves, etc. out. Although the pool looks horrible, the water I pulled out to test is clear. I am now going to test that water.

    Am I looking at following the algae removal process, or simply shocking and cleaning the pool? It looks like mainly it's a dirty bottom. I should not that a couple weeks ago, I peeking in the pool and it wasn't anywhere near this bad. This is pollen, etc. that has fallen recently on to the cover.

    Should I filter first, then use the vacuum? Or vacuum first?
    18' AG pool, 7,646 gallons, Sun from 11:30AM-2PM.
    Pentair Dynamo 1hp pump, Intermatic Timer (6/17)
    Pentair Sand dollar filter - 100lbs, 35gpm
    Pentair Lil' Shark cleaner, TF-100 Kit
    Raypak 206A 200K, BTU gas (6/17)

  2. Back To Top    #2

    Re: What have I got here? Water is clear, buttom of pool gr

    With so much settled on the bottom, I would vac first.

    Test data?
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  3. Back To Top    #3

    Join Date
    Jun 2009
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    Exton, PA
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    Re: What have I got here? Water is clear, buttom of pool gr

    Thanks. There was so much **** floating around, including tadpoles, I fired up the filter first and hit it with some chlorine. What's on the bottom is more green dust, so it moves even as I was adding water from the hose. I don't have time to vaccum it today, but tonight or tomorrow I should have plenty of time. My vacuum works well, but it flips over sometimes, so I need to babysit it.

    Test results were:

    CYA - 0
    TC - 0
    PH 7.0

    I added 63 oz of chlorine, then realized. The chlorine available now looks to be 8.25% concentrated and not the 6% the calculator was made for. So, oops. I guess it's a bit more than I needed. I adjusted my calculator for 8.25% now. Of course, I wonder if the 8.25% is BS that allows them to sell a smaller jug for a similar price of the larger. I'll leave that to the chemical geeks here.

    I'm adding a stocking with some stabilizer, to get the CYA up.

    I ran the hose like a fountain, to add O2 and get the PH up. I've never had to adjust for PH or TA, so I'm staying away from that until I get the rest situated.
    18' AG pool, 7,646 gallons, Sun from 11:30AM-2PM.
    Pentair Dynamo 1hp pump, Intermatic Timer (6/17)
    Pentair Sand dollar filter - 100lbs, 35gpm
    Pentair Lil' Shark cleaner, TF-100 Kit
    Raypak 206A 200K, BTU gas (6/17)

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    BoDarville's Avatar
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    Jun 2012
    Location
    DFW, Texas
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    3,840

    Re: What have I got here? Water is clear, buttom of pool gr

    Quote Originally Posted by joseywales
    Of course, I wonder if the 8.25% is BS that allows them to sell a smaller jug for a similar price of the larger.
    Around here, the package of three 121 oz bottles of 8.25% regular Clorox are within a few pennies of what the old 3-pack of 182 oz bottles at 6% sold for. However, although the concentration per oz is higher than before, the new 121 oz, 8.25% 3-pack contains a bit less chlorine overall compared to the former 182 oz , 6% 3-pack. The bleach concentration would have to be ~ 9% for the 121 oz bottles to be equivalent to the total amount of chlorine in the 6% 182 oz bottles.

    182 oz / 121 oz = 1.504
    6% * 1.504 = 9.025%

    Figured another way, the 8.25% bottles would have to be ~132.4 oz.
    8.25% / 6% = 1.375
    182 oz / 1.375 = 132.36

    On the plus side, the new packaging is less bulky than the former.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

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