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Thread: Cloudy water after algae treatment

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    Join Date
    Jul 2015
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    Corona, CA
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    Question Cloudy water after algae treatment

    Hi everyone! I'm pretty excited to finally be a member of TFP after three long years of wanting a pool. We just put up an Intex (I know, I know) 18' x 48" round AG pool in June. It was looking amazing for the first 4 weeks, then we had a HUGE storm (which we needed in So Cal, but often causes problems). I didn't know it, but the storm caused the GFCI that the pump was plugged into to trip. So...the pump and SWG did not come on like they were supposed to AND we had rain water in the pool. Fast forward one week and I had green water. I almost started crying.

    I went to the pool store and have been pretty trusting since I've been having my water tested about every week there and they've not been pushy at all about selling stuff. I told him about my algae and he gave me a plan for the following results: FC 2 (TC 2), salt 3200ppm, CH 160, CYA 60, TA 100, pH 7.4, phosphates 200.

    The plan was to triple shock, thoroughly brush the pool, add algae control (Kemtek 60% concentrated algaecide I bought from Amazon), then superchlorinate using a pound of their Chlor Brite (Leslie's granulated chlorine). I was finally able to start seeing a little further down in the water and decided to brush again. My SWG has been on boost mode since last night (I thought Boost mode had a preset time with auto off, but it has been on the whole time).

    I'd like to know what the TFP recommendations would be for continuing to monitor this situation since now it's sunny outside and I have to work tomorrow. Any help or suggestions are appreciated. Thank you in advance!
    18' x 48" Intex AG, 6700g
    1500gph Intex cartridge pump, SWG
    Installed June 2015 w/ city water (on restrictions)
    Taylor FAS-DPD 2006 kit

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    Mod Squad pooldv's Avatar
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    Re: Cloudy water after algae treatment

    Welcome to TFP and congrats on the new pool!

    Rain didn't turn your pool green, lack of chlorine did. It is important to always maintain chlorine at target level for your CYA, Chlorine CYA Chart.

    Algaecide does not kill algae. It might even say in the instructions not to add it if you have algae. And if it contains copper it can stain your pool and turn light hair green. And it costs too much!

    All you need to kill the algae is chlorine and this process, Pool School - SLAM - Shock Level And Maintain.

    Here is an intro to how we maintain pools. Pool School - ABCs of Pool Water Chemistry

    Step 1 is to get a great test kit, Pool School - Test Kits Compared. I use the TF100 from TFTestkits.net.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Join Date
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    Location
    Corona, CA
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    Re: Cloudy water after algae treatment

    Oops! I left out the step about triple shocking the pool BEFORE adding the algaecide. Yes. Underchlorination was a constant problem for us before the rain and the disabling of the filter pump. But it wasn't until I left the SWG on boost after slamming that I noticed the difference. Even better is today after the water returned to a cloudy/milky blue, I did not feel any slickness to the walls or floor. What should I expect from the dead algae as far as debris clean up goes?

    Also, I am expecting my FAS-DPD kit to arrive in two days. I have read the ABCs of Pool Chemistry a few times. One thing I'm concerned about and need more education on is the use of chlorine bleach so heavily recommended on this site. Can you please advise me on the use of bleach or direct me to a site or Pool School page on this topic? Thanks again.
    18' x 48" Intex AG, 6700g
    1500gph Intex cartridge pump, SWG
    Installed June 2015 w/ city water (on restrictions)
    Taylor FAS-DPD 2006 kit

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    Mod Squad pooldv's Avatar
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    Re: Cloudy water after algae treatment

    Sounds like good progress. Run your filter 24 hours, or at least a lot. Brush every day to expose the algae to chlorine and vacuum every day to get rid of the dead algae.

    Bleach is just a convenient form of chlorine that does not add CYA like dichlor and trichlor pucks and shock do. Liquid chlorine is fine too, it is exactly the same as bleach with a higher percentage of chlorine. The chlorine is the same in all of them.

    More here, Pool School - How to Chlorinate Your Pool
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Cloudy water after algae treatment

    Ah. Thank you for clarifying the benefits of using bleach. I was under the impression that it was harmful to the environment and swimmers.

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    Mod Squad pooldv's Avatar
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    Re: Cloudy water after algae treatment

    Quote Originally Posted by SadieMcGee13 View Post
    Ah. Thank you for clarifying the benefits of using bleach. I was under the impression that it was harmful to the environment and swimmers.
    More pool store myths and ignorance. The ingredients in pool store liquid chlorine, liquid shock and plain old grocery store bleach are exactly the same. Sodium hypochlorite and water.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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