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Thread: Can someone tell me if this is green or yellow algae?

  1. #21
    Mod Squad jblizzle's Avatar
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    Re: Can someone tell me if this is green or yellow algae?

    Might be algae ... follow the shock process and keep brushing and it should be gone (unless the pool is actually stained).
    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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  2. #22

    Re: Can someone tell me if this is green or yellow algae?

    Quote Originally Posted by jblizzle
    Might be algae ... follow the shock process and keep brushing and it should be gone (unless the pool is actually stained).
    If it is stained, what are the steps for that? I do have some slight rust on my pool steps, should this be a concern?

  3. #23
    Mod Squad jblizzle's Avatar
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    Re: Can someone tell me if this is green or yellow algae?

    If it is stained, it is just aesthetic. How to remove it depends if it is organic (use chlorine) or metal (use vitamin C) stains.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, Dolphin Diagnostic Robotic Cleaner, TF-100 test kit w/ SpeedStir
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  4. #24
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    Re: Can someone tell me if this is green or yellow algae?

    3foot,

    No one can tell from a picture if you have algae for sure, let alone a certain species. The point to remember is chlorine kills algae, regardless of the species.

    Maintain your pool by learning to test accurately and frequently and then understanding what the tests mean.

    Your test results don't look half bad at all but you must learn what constitues good and bad tests.

    Start by reading the ABC's of Pool Water Chemistry in Pool School and then read how to shock your pool in Pool School as well.

    If you learn the basics, shock your pool, and then maintain your parameters within the suggested ranges in pool School, you won't have any type of algae.
    Dave S.
    Site Owner 42k vinyl and concrete pool, 1.5hp pump, 140gpm filter, No SWG
    TFTestkits owner
    TFTestkits , PoolMath , Pool School

  5. #25

    Re: Can someone tell me if this is green or yellow algae?

    Quote Originally Posted by jblizzle
    If there is not much to pick up, then just see how the sand filter does.

    No more tablets!!! They add CYA and you are at the top of the recommended range. They will last for years, so you may be able to use them while on vacation or if your level drops due to backwashing and winter.

    Basically, you are correct, Taylor does not take the CYA into account ... there are some weird legal reasons why companies never say more than 4ppm too. Government and pool companies seem to be VERY slow accepting the proven chemistry and change their ways.
    You think it will be okay if I get a Floating Chlorinator which can tune the output at the lowest. I do like the idea that this can maintain the chlorine in the pool...I have Leslies 3" Jumbo tabs (99% trichloro-s-triazinetrione). I use to leave it in the skimmer, maybe that is why I was getting so much CYA and high pH?

  6. #26
    Mod Squad jblizzle's Avatar
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    Re: Can someone tell me if this is green or yellow algae?

    No. On the lowest setting it will not likely add enough FC and you will still be adding CYA which its already on the high end.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, Dolphin Diagnostic Robotic Cleaner, TF-100 test kit w/ SpeedStir
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  7. #27

    Re: Can someone tell me if this is green or yellow algae?

    I ran a set of test again today and my following readings are:

    FC - 5.5
    CC - .5
    pH - 7.8
    Alk - 150
    CH - 225

    Any reason why my FC dropped from 9.5 to 5.5 in 12 hours? Is it still fighting the algae? Also, should CC be at .5? The only thing I added last night was approx 3.5lbs of Dry Acid.

    Where on this forum can I find TBP's recommended chemical levels (FC, CC, CYA, TA, pH, CH, etc.)?

  8. #28
    Mod Squad jblizzle's Avatar
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    Re: Can someone tell me if this is green or yellow algae?

    From Pool School {have you read it all yet?}
    pool-school/recommended_levels

    Your FC drop is slightly above normal so there must still be something in the water.
    CC of 0.5ppm is fine.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, Dolphin Diagnostic Robotic Cleaner, TF-100 test kit w/ SpeedStir
    Gone: Hayward RS1500 pump, undersized DIY solar heater, Dolphin Dynamic Robotic Cleaner
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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