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Thread: Great SLAM results so far

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    Great SLAM results so far

    Thought I'd post some pics of my spring slam:


    Saturday 4/11 around 12:30 - treating with muriatic acid and waiting for ph to come down - CYA is less than 30 - estimated it around 10 - but I started the slam assuming 30. FC is a negative number at this point - and the NC spring pollen clouds have left me a nice yellow sludge to clean up. LOL!
    16x32 in-ground vinyl liner, SGS Breeze 540 salt system, Pentair 1.5hp pump, Booster pump & Tagelus sand filter.

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    Re: Great SLAM results so far

    Started the SLAM Saturday evening, and have spent Sunday babysitting the process.
    2 full rounds with the brush, backwashed the filter a couple of times and emptied the pool cleaner bag 3 or 4 times. Not much of any debris left.
    Yes - the pool area needs a serious clean up.

    I've got the pool cleaner running and as of 12:30 - we've got a lot cleaner looking pool - still maintaining around 5ppm FC and CC of 1 or less:


    - - - Updated - - -

    Sunday later in the afternoon FC remains around 5ppm, and CC is 0... I've dialed back on FC since the CYA is so low.
    16x32 in-ground vinyl liner, SGS Breeze 540 salt system, Pentair 1.5hp pump, Booster pump & Tagelus sand filter.

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    Re: Great SLAM results so far

    CH? Calcium Hardness? What is your FC and are you keeping it at slam levels?
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    Mod Squad kimkats's Avatar
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    Re: Great SLAM results so far

    That is some good progress already!

    I am hoping they meant FC instead of CH but...............better to check.

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    Mod Squad pooldv's Avatar
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    Re: Great SLAM results so far

    Looking good so far!
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    Re: Great SLAM results so far

    Quote Originally Posted by unkyjoe View Post
    CH? Calcium Hardness? What is your FC and are you keeping it at slam levels?
    I dialed the slam level back a bit - My CYA is less than 30. CH I really never pay much attention to with the vinyl liner.

    And yes - I mean FC not CH... doh...! Went back and fixed that... Thanks for the heads up....

    FC has steadily dropped - so I need to bump my chlorine shock a bit. Will post a morning pick... everybody loves a good SLAM....
    16x32 in-ground vinyl liner, SGS Breeze 540 salt system, Pentair 1.5hp pump, Booster pump & Tagelus sand filter.

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    Re: Great SLAM results so far

    Yes CH = FC... fixed it... I'm thinking CH = chlorine... oops...
    16x32 in-ground vinyl liner, SGS Breeze 540 salt system, Pentair 1.5hp pump, Booster pump & Tagelus sand filter.

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    Casey's Avatar
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    Re: Great SLAM results so far

    You need to be up around 10-12 ppm at all times. SLAM means Shock Level And MAINTAIN. You're stalling by staying at 5ppm.

    Please SLAM your pool!
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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    Patrick_B's Avatar
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    Re: Great SLAM results so far

    +1 To Casey's suggestion. FC 5 will let you down for sure. Keep it up, and you'll be done before too long.
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    Re: Great SLAM results so far

    Quote Originally Posted by Patrick_B View Post
    +1 To Casey's suggestion. FC 5 will let you down for sure. Keep it up, and you'll be done before too long.
    My CYA reads really low - less than 30. I was going by the shock tables with that level of CYA. How risky is it to bump the FC up to 10-12 with CYA so low?

    - - - Updated - - -

    Quote Originally Posted by Casey View Post
    You need to be up around 10-12 ppm at all times. SLAM means Shock Level And MAINTAIN. You're stalling by staying at 5ppm.

    Please SLAM your pool!
    Is it risky to bump the FC to 10-12 with the CYA really low? My reading stops at 30, and the black dot is still pretty clearly visible.
    16x32 in-ground vinyl liner, SGS Breeze 540 salt system, Pentair 1.5hp pump, Booster pump & Tagelus sand filter.

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    Re: Great SLAM results so far

    To slam your pool with a CYA level of 20 your FC needs to stay at 10 at all times. If your CYA is at 30 you need to keep your FC at 12. I would keep it at 12 to be safe. Your FC level of 5ppm is more of your target when not slamming your pool. Raising your FC to 10-12 will in no way harm your CYA or your pool. It's a must to raise it to this to actually kill the algae. If your FC drops lower than your slam level of 10-12 the algae will keep growing. You need to get up and over the algae and keep it there to kill it. Overwhelm the algae!! It's the only way!
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    Casey's Avatar
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    Re: Great SLAM results so far

    Quote Originally Posted by Iwilk View Post
    To slam your pool with a CYA level of 20 your FC needs to stay at 10 at all times. If your CYA is at 30 you need to keep your FC at 12. I would keep it at 12 to be safe. Your FC level of 5ppm is more of your target when not slamming your pool. Raising your FC to 10-12 will in no way harm your CYA or your pool. It's a must to raise it to this to actually kill the algae. If your FC drops lower than your slam level of 10-12 the algae will keep growing. You need to get up and over the algae and keep it there to kill it. Overwhelm the algae!! It's the only way!
    Exactly. Now, SLAM the pool so you can enjoy it.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

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