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Thread: Can't get the algae off the bottom of my pool....

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    Join Date
    May 2017
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    Beaumont, Ca
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    Can't get the algae off the bottom of my pool....

    Hi all, new here, first post and I need help...

    First time pool owner: I have a 9500 gal pebble tech pool, with 4 x canister filters (in the big drum) and a pool skimmer that is always on when the filter is running. I have had algae on the bottom of my pool since the weather changed and no matter what I do, I cannot get it to go away. I purchased a new brush (orange head with gray bristles) that was recommended to me by Leslie's, I have cleaned my filters, shocked the pool, just added chlorine (first time this season aside from the tablets), added my 13.5 oz of 50% algeside (spelling?), and the crystal clear. It seems like no matter how much I scrub the bottom, there is always algae left over.

    Last summer this was not a problem and I was able to keep the algae at bay with simple maintenance, but now it seems to have come back with a vengeance!

    Would purchasing a solar cover for the pool help to prevent the algae from growing as rapidly, or does that just warm the water and that's it?

    Any and all help it greatly appreciated. I am hoping this is a problem that can be taken care of quickly as we are throwing a birthday party in 2 weeks and we don't want our guests to be concerned with their children swimming in the water. Thanks for the help! Jace

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    AimeeH's Avatar
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    Apr 2012
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    Columbia SC
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    Re: Can't get the algae off the bottom of my pool....

    Welcome to TFP

    As a general rule algae is a result of low chlorine levels. What we teach is about testing your water with a good test kit and adding what the pool needs. Here are some good starting points:

    Pool School - ABCs of Pool Water Chemistry
    Pool School - Chlorine / CYA Chart
    Pool School - SLAM - Shock Level And Maintain

    Can you put your pool information in your signature? How are you chlorinating? Do you have current test results like this?

    FC
    CC
    PH
    TA
    CH
    CYA

    CYA is the important one in order to know where to be targeting your FC.
    18*36*23 true "L" vinyl IG 29,000 gallons. SWG. TF-100 test kit.
    http://tftestkits.net/splash-page.html

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    Mod Squad woodyp's Avatar
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    Apr 2010
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    East Texas
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    10,158

    Re: Can't get the algae off the bottom of my pool....

    A solar cover is not your answer. Good testing and chemical maintenance is.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  4. Back To Top    #4

    Join Date
    May 2017
    Location
    Beaumont, Ca
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    Re: Can't get the algae off the bottom of my pool....

    Quote Originally Posted by AimeeH View Post
    Welcome to TFP

    As a general rule algae is a result of low chlorine levels. What we teach is about testing your water with a good test kit and adding what the pool needs. Here are some good starting points:

    Pool School - ABCs of Pool Water Chemistry
    Pool School - Chlorine / CYA Chart
    Pool School - SLAM - Shock Level And Maintain

    Can you put your pool information in your signature? How are you chlorinating? Do you have current test results like this?

    FC
    CC
    PH
    TA
    CH
    CYA

    CYA is the important one in order to know where to be targeting your FC.
    Thank you for the help. Here is what I have from my testing:

    FC 2.0
    CC 2.0
    Ph 7.2
    TA 100
    CH I don't have this testing unit
    CYA I don't have this testing unit

    I am chlorinating with liquid chlorine, and using 3 x 3" tablets in my floater for maintenance. I will add my info to the signature shortly

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    Mod Squad mknauss's Avatar
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    May 2014
    Location
    Laughlin, NV
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    10,952

    Re: Can't get the algae off the bottom of my pool....

    As AimeeH stated above, you need a proper testing kit. You need to know your CYA as I suspect you have high CYA (you stated using a solid chlorine source = Pucks) and thus too low FC. You need to test CH as our water here in the Southwest tends to be 'hard' - or high in CH.

    I would get prepared for a major water exchange in your near future.

    Take care.
    6000 Gallon IG Fiberglass with integrated Spa;Pentair CCP240 Cartridge Filter with Pentair Intelliflo VS Pump and HTR250 heater. IC40 SWG. EasyTouch 4. Dolphin Active20 Robot "Roadrunner", TF 100 Test Kit w/SpeedStir!
    CLICK HERE to Become a TroubleFreePool.com Supporter!! Pool Math App
    Marty

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