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Thread: Need help with my green pool

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    girl1der's Avatar
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    Need help with my green pool

    Hello! I just introduced myself on this site: girl1der

    We moved last October and this pool came with the house. We were able to keep it clear during the cooler months but it's really starting to warm up here and we've been having trouble keeping the algae away.

    After a few failed attempts at "shocking" using the methods listed on this site, we decided to open up the filter a few days ago. Wow! It looked as if the previous owner hadn't cleaned it in a year. We hosed it off until it was white again so that's a good place to start. After reinstalling the filter, we immediately noticed a change in the water flow so the pool is circulating much more efficiently. We're so glad we though to check the filter and didn't waste more money on bleach and acid.

    So it's been running almost constantly for two days as is without adding anything. I checked the ph level yesterday in the early evening and it was high so I added the amount of muriatic acid the test said to get the level where it should be.

    Here are my numbers from this morning:

    Ph = 7.5
    CH = 190
    TA = 140
    CYA = 80
    FC 5 - TC 4 = CC 0

    I'm new to advanced testing so if anything looks "off", please let me know. Thanks.

    Robyn (girl1der)
    18 x 30, 20,000 gallon, plaster inground oblong. Pentair whisperflo 3/4 HP pump. Pentair clean & clear cartridge filter.

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    Mod Squad jblizzle's Avatar
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    Re: Need help with my green pool

    As I mentioned in the other thread ... what test kit are you using?

    The presence of algae is a chemistry problem and not a filtration problem. You need to review and follow the ShockLevelAndMAINTAIN Process.

    I also suggest you take a look at the FC/CYA Chart as with a CYA of 80ppm (which is a little high for a non-SWG pool), you are not likely keeping the FC high enough, even if you did not have algae.

    Also note that we recommend cleaning the filter when the pressure rises 20-25% over the clean pressure. What is the pressure now after you cleaned the filter?
    Jason, TFP Moderator
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  3. Back To Top    #3
    girl1der's Avatar
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    Re: Need help with my green pool

    I am using the Taylor 2005. Before, I only had the basic test that tested for total chlorine and ph. I know it's missing something that the 2006 has but the 2005 was in my budget so. . .

    - - - Updated - - -

    And I do realize that the presence of algae isn't simply a filtration problem but I was thinking that because the filter was so gunked up, no amount of chemicals were going to clear up the algae if I couldn't get them circulated through my pool properly. My bad.

    - - - Updated - - -

    Just checked and the pressure gauge reading is at 0. I asked hubs about it and if it was even working and he said "I don't know if the guage is working but I do know it's sucking really good now" (referring to the pool vacuum).
    18 x 30, 20,000 gallon, plaster inground oblong. Pentair whisperflo 3/4 HP pump. Pentair clean & clear cartridge filter.

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    Mod Squad jblizzle's Avatar
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    Re: Need help with my green pool

    Well, you really need to add the FAS-DPD Chlorine Test to your kit as that is the key to the entire TFPC method.

    Sounds like you need a new gauge too ... tftestkit.net sell really nice ones for the same cost as the junk you find locally.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    girl1der's Avatar
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    Re: Need help with my green pool

    Thank you, Jason. I'll add the FAS-DPD to my shopping list.

    - - - Updated - - -

    and a new gauge
    18 x 30, 20,000 gallon, plaster inground oblong. Pentair whisperflo 3/4 HP pump. Pentair clean & clear cartridge filter.

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    Divin Dave's Avatar
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    Re: Need help with my green pool

    Hi girl2der,
    welcome.

    I totally agree with Jason on getting the FAS-DPD. without it, you will never be able to maintain your FC level with a CYA of 80. There just isnt any way to know what it is.

    Anyways... just wanted to drop in and say hi!
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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    girl1der's Avatar
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    Re: Need help with my green pool

    Hi Dave, Thanks for the welcome. I added the FAS DPD test and a new pressure gauge to my shopping cart at the TFT site. I'm looking forward to getting my pool back in shape.
    18 x 30, 20,000 gallon, plaster inground oblong. Pentair whisperflo 3/4 HP pump. Pentair clean & clear cartridge filter.

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    girl1der's Avatar
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    Re: Need help with my green pool

    Update: Still waiting on my FAS-DPD test kit but in the meantime, I used the CYA/shock chart and added 8 gallons of bleach to the pool and it cleared up the green. The pool is bluer than it's been in quite a while. Yay!
    18 x 30, 20,000 gallon, plaster inground oblong. Pentair whisperflo 3/4 HP pump. Pentair clean & clear cartridge filter.

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    Mod Squad jblizzle's Avatar
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    Re: Need help with my green pool

    You will still need to follow the SLAM process when you get the kit.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Patrick_B's Avatar
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    Re: Need help with my green pool

    Good deal, but make sure you know its likely got a ways to go. Once you have the results, you'll know more. Good to hear you have it looking up!
    TFP Moderator
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  11. Back To Top    #11
    girl1der's Avatar
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    Re: Need help with my green pool

    Yep baby steps. Thanks everyone.
    18 x 30, 20,000 gallon, plaster inground oblong. Pentair whisperflo 3/4 HP pump. Pentair clean & clear cartridge filter.

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    Texas Splash's Avatar
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    Re: Need help with my green pool

    Hopefully you find it a little reassuring to know that even though you are waiting on the remainder of your test kit to arrive to better test FC, just by adding the initial bleach so far you've seen a change for the better. Just imagine how much better it will be when you have those "accurate" readings and can follow SLAM to the "T". Congrats on taking charge of YOUR pool. Try to post pics of the transformation if you can. Readers love to see the change.
    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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