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Thread: algae

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    shane4's Avatar
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    algae

    New pool owner and I have not yet purchased a good test kit. I only have a cheap chlorine and ph tester (using red and yellow drops) and I have those 4 in one test strips. Had some early signs of algae that was sprawling across the floor and a bit up the sides. Pool store had me put 15 litres of 10.3% liquid chlorine to shock the pool and attack algae.. According to their water test CYA was 81ppm in an 83000 litre pool. The water was a bit cloudy. I vacuumed and scrubbed until there were no traces of algae. I added the chlorine Friday night. Saturday morning to my surprise the water was crystal clear. There were a few pockets of clumped algae as opposed to sprawling along the floor and walls. I assumed it was dead algae. I vacuumed again (to waste not through filter) and all seems fine. Added water as vacuuming to waste took a lot of water out of the pool.

    This evening I notice a much slower growth of the same brown/orange along two vinyl seems along the bottom. I vacuumed it up. A few hours later Small traces are back at the seems.

    I have very basic testing available but the strips tells me FC is through the roof and the drops testers show neon yellow. I cant get to the store for another test (theirs is still better than what I have). Should I shock again or will the high chlorine keep attacking the algae? I am nervous of adding more chlorine. Will it hurt my liner and/or equipment.
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    Re: algae

    A good test kit is essential to doing anything to your water......but if you dilute your pool sample with tap water a 50:50 mix and do your drop test for chlorine you may get a readable result which you then double for a almost accurate reading........I cant stress enough how important a quality test kit is
    Nathan
    15x30 gunite 18k gallons Hayward star clear plus 120sqft cart

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    Re: algae

    Test strips and pool stores are about equally worthless. Since you mentioned liters, I assume you are in Canada? Someone who lives there will be able to give you advice on how to get a test kit.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

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    Richard320's Avatar
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    Re: algae

    From my own research (which I hunted down here using search) Blinding yellow is about 10. School bus/construction equipment yellow is about 12-13. Hunter orange is around 18, up around 25 it starts to look pumpkin orange. I never went any higher than that, but it's been reliably reported that it eventually will turn brown if you get high enough.

    So you're probably still not at shock level for 81 CYA.

    I'd advise you to fill out your signature - upper left User Control Panel>Profile>Edit Signature soon. You're going to get nagged to death to get the proper test kit and there's only one source in Canuckistan for it.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    shane4's Avatar
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    Re: algae

    Thanks all. Cannot get a test kit quick enough. I do realize from all the posts throughout this forum how important it is. But not easy to get here for some reason at least at a reasonable price. Anyways I wad just wondering if it were necessary to shock every day to combat the algae or if that would harm my pool.
    Cheers
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    Richard320's Avatar
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    Re: algae

    Quote Originally Posted by shane4
    Thanks all. Cannot get a test kit quick enough. I do realize from all the posts throughout this forum how important it is. But not easy to get here for some reason at least at a reasonable price. Anyways I wad just wondering if it were necessary to shock every day to combat the algae or if that would harm my pool.
    Cheers
    Off to Pool School with you!

    Shock is a process, not a product, and not a one-time thing. To totally eradicate the algae will take anywhere from several days to several weeks at shock level. The good news is, once you get rid of it for keeps, if you commit to maintaining the pool properly, you may never have to do it again.


    A little inspiration:
    first-time-shocking-with-bleach-t45074.html
    pretty-black-pool-t58442.html
    first-time-pool-owner-t61565.html
    a-little-encouragement-for-those-with-algae-and-new-to-bbb-t57137.html
    frog-filled-green-swamp-to-oasis-work-in-progress-t48213-20.html be sure to look at page 2
    before-and-after-t36785.html
    a-final-picture-set-of-how-well-the-bbb-method-works-t33199.html
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    shane4's Avatar
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    Re: algae

    Been trying to go over the entire pool school as well as other threads. So much to review, so much to learn, so many questions to ask.

    Thanks for the direct links Richard320, I am off to shock and continue reading

    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    shane4's Avatar
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    Re: algae

    Just to give an image of what I am dealing with here are pictures of these "clumps". My water is crystal clear.
    Attached Images Attached Images
    • File Type: jpg 2.jpg (149.3 KB, 123 views)
    • File Type: jpg 4.jpg (83.9 KB, 123 views)
    • File Type: jpg 5.jpg (161.1 KB, 123 views)
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    shane4's Avatar
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    Re: algae

    Rules section did not mention picture sizes (unless I missed it). Are the previous pics ok size?
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    Re: algae

    Shane4,

    Carefully and slowly peek out the window.....the TFP Forum SWAT Team should have your house completely surrounded by now

    (The pictures are just fine and you are an excellent member for reading the rules. Thank you.)

    PS - Throw a six pack out the front door...our SWAT team is easily diverted.

    Almost forgot....the pics definitely look like small piles of dead algae. Do they brush away easily?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    shane4's Avatar
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    Re: algae

    .........shhhh, some one is in the bushes..........


    It looks like dead algae????? I assumed because of the green colour it was alive and well. As for removal, it sucks right up with the vacuum in one pass.
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    shane4's Avatar
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    Re: algae

    I think i got it beat! Never lost the clear water except for a day and no more greeny clumps
    Attached Images Attached Images
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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    pwrstrk's Avatar
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    Re: algae

    Good job !!!


    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: algae

    Looks good
    Nathan
    15x30 gunite 18k gallons Hayward star clear plus 120sqft cart

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    shane4's Avatar
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    Re: algae

    Thanks for the help!
    Only thing concerning me is I seem to still need to vacuum up what looks like small pockets of dead algae. How long will that continue?
    16' x 32' IG, vinyl, 80k litre (21k gal), "lazy L" (kidney like at deep, squared off at shallow) shallow 3', deep 8', Hayward sand filter 300 lbs, 20gal/min Mod S-244T, Pentair Superflow VS 1.5 HP Model 342001, Raypak Heater 266K BTU Mod P-R266A-EN-C, 2 returns, 1 skimmer, 1 main drain, diving board, Southern Ontario (Canada) climate.

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