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Thread: Help SLAMing the pool with possible Mustard Algae (NooB ?)

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    Help SLAMing the pool with possible Mustard Algae (NooB ?)

    Hello,

    Glad to be part of the forum. I've learned a lot so far, I just need to learn more and help persuade my wife this approach really is better than spending money at Leslie's and having the CYA shoot up (even more; see below).

    So I noticed a yellowish green tint to the shaded walls in my pool and sure enough when I brushed it off and did a normal shock (new owner of pool here with leftover shock from previous owner) it seemed to go away just to come back. I have now begun the slamming process and here were my first numbers before the slamming began using the TF-100 kit.

    PH: 7.8
    FC: 4.0
    CC: .5
    TC: 4.5
    TA: 80
    CYA 70

    I then reduced the PH to the 7.4-7.5 range per slamming directions.

    The first night of slamming (10:25 PM) FC was at 28 (per chart) and remained 28 the next morning at 7:45 AM.
    Then, we got a bunch of rain. FC dropped to 15 5 days after slamming began (I did not add chlorine during heavy rains).
    Once rains stopped I brought FC up to 33. 8 hours later FC=23. Last night I raised FC to mid 30's (did not measure) and used 1.75 gallons of yellow gone leftover from Leslie's and previous owner. This morning at 7:00 AM my numbers were:

    FC 7.0
    CC 0
    TC 7.0

    Something is consuming my chlorine at a rapid rate. Do I continue slamming at the mustard algae levels? Or is there another solution I should think about at this time. Does anyone know if the Yellow Gone stuff consumes chlorine too?

    Anyway, any help/advice will be appreciated!

    Best,
    John Downing
    El Paso, TX

    16,500 IG, Plaster, DE filter, Pentair FNS Plus 48, 1 HP WhisperFlow NOT variable speed, 5+ years ago.

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    Mod Squad jblizzle's Avatar
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    Re: Help SLAMing the pool with possible Mustard Algae (NooB

    Welcome to TFP! !

    You need to complete the normal SLAM process and then raise the FC to mustard level per the article in Pool School.

    The sun will consume more FC while at higher FC levels. I think I recall reading that the yellow out may infact consume it as well, try a forum search.
    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, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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    duraleigh's Avatar
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    Re: Help SLAMing the pool with possible Mustard Algae (NooB

    Yeah, that "yellow gone" or "yellow out" stuff does consume chlorine.

    A prime tenant of BBB is don't put things in your pool when you are not sure what they will do.

    Follow the SLAM process to it's completion and keep your FC up the entire time, regardless of how much it takes.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Help SLAMing the pool with possible Mustard Algae (NooB

    Thanks for your responses. I've only had the pool a month and I am still learning so forgive the experimentation with other products. At this point, I think I am going to end the SLAM process as we are scheduled to get rain over the next week. I thought I would just keep the FC at the target for mustard algae (10.5 given my CYA) until the forecast is for dry weather. Also, I should note that I did pass the big three tests at the normal SLAM level but only failed the OLCT when I bumped to the mustard levels. I read that others have this issue. Does anyone know why?
    John Downing
    El Paso, TX

    16,500 IG, Plaster, DE filter, Pentair FNS Plus 48, 1 HP WhisperFlow NOT variable speed, 5+ years ago.

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    Mod Squad jblizzle's Avatar
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    Re: Help SLAMing the pool with possible Mustard Algae (NooB

    Keep it at mustard slam level, which is much higher than 10.5. The rain does not change the process.
    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, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    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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    Re: Help SLAMing the pool with possible Mustard Algae (NooB

    Got it. Thanks for the tip about the rain. But how would I possibly pass an OCLT if it rains overnight? Just bought a house and really trying to conserve funds.

    Thanks!
    John Downing
    El Paso, TX

    16,500 IG, Plaster, DE filter, Pentair FNS Plus 48, 1 HP WhisperFlow NOT variable speed, 5+ years ago.

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    Mod Squad jblizzle's Avatar
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    Re: Help SLAMing the pool with possible Mustard Algae (NooB

    The rain does not really affect the chemistry.
    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, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    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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