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Thread: SWG slamming

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    SWG slamming

    Hey guys, so this is my 2nd season with having a pool to SLAM and had a few questions.

    I reread the SLAM process and just realized something, for SWG, the recommended CYA is between 70-80. However in the SLAM process it says the most effective CYA level for an outdoor pool is around 30-40. So should i be raising my CYA to 30-40 and go through with the SLAM or raise my CYA to 70-80 then SLAM at that point. Obviously it would require ALOT more liquid bleach to get it up to 28 and maintain it. Anyhow, sorry for the dumb question. Cheers!
    Brian, Pool newbie in Atlanta, GA. 24k IG vinyl pool, Circupool SI-45 SWG (purchased 3/2014) , Hayward Pro Series Sand filter S220T, Pentair 1hp 2-speed superflow (thanks Jbizzle!), TF-100 test kit w/ SpeedStir
    Removed -> Hayward 1HP Super pump SP-1607-Z1-M

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    Richard320's Avatar
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    Re: SWG slamming

    When you SLAM, you're using bleach. So you have a bleach pool. SLAM at 30 CYA if you have a choice. If your CYA is 50 already, then you adjust to that. If you're adding CYA, go to 30, SLAM, then raise CYA afterwards and adjust salt levels and so on.
    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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    jeffchap's Avatar
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    Re: SWG slamming

    Keep your CYA at the lower level until you complete the SLAM. Then you can raise it to 70-80.

    The only reason for the higher CYA levels for an SWG is that they produce chlorine at a slower, steadier rate. So you don't have to worry as much about all of your chlorine getting bound up by the CYA. But it will be much more effective and cheaper to SLAM at the lower level, since you'll likely be purchasing bleach to do that with.
    25000 gallon free-form gunite
    Jandy Stealth pump/CL340 cartridge filter
    Pentair IC40 SWG
    Pentair MasterTemp 250HD heater
    Jandy AquaLink RS automation

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    Re: SWG slamming

    Sorry guys, i should have mentioned it, yes I will be SLAMming with liquid bleach (thanks kroger and aldis for cheap bleach!). But you guys answered my question perfectly nontheless. (and you saved me yet a huge bundle o cash) This is another reason I do not regret becoming a lifetime supporter of this VERY WONDERFUL site! Thanks guys!

    - - - Updated - - -

    Oh, one other thing, just for clarity, i should treat the pool as a non-SWG until its clean and OCLT is < .5. Once i get to that stage I put in the salt and raise the CYA to 70-80 correct?
    Brian, Pool newbie in Atlanta, GA. 24k IG vinyl pool, Circupool SI-45 SWG (purchased 3/2014) , Hayward Pro Series Sand filter S220T, Pentair 1hp 2-speed superflow (thanks Jbizzle!), TF-100 test kit w/ SpeedStir
    Removed -> Hayward 1HP Super pump SP-1607-Z1-M

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    Richard320's Avatar
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    Re: SWG slamming

    Quote Originally Posted by rarenomad View Post
    Sorry guys, i should have mentioned it, yes I will be SLAMming with liquid bleach (thanks kroger and aldis for cheap bleach!). But you guys answered my question perfectly nontheless. (and you saved me yet a huge bundle o cash) This is another reason I do not regret becoming a lifetime supporter of this VERY WONDERFUL site! Thanks guys!

    - - - Updated - - -

    Oh, one other thing, just for clarity, i should treat the pool as a non-SWG until its clean and OCLT is < .5. Once i get to that stage I put in the salt and raise the CYA to 70-80 correct?
    Exactly.
    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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    Re: SWG slamming

    If i werent a man and married id kiss you, thanks rich and company!

    Brian, Pool newbie in Atlanta, GA. 24k IG vinyl pool, Circupool SI-45 SWG (purchased 3/2014) , Hayward Pro Series Sand filter S220T, Pentair 1hp 2-speed superflow (thanks Jbizzle!), TF-100 test kit w/ SpeedStir
    Removed -> Hayward 1HP Super pump SP-1607-Z1-M

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    Mod Squad pooldv's Avatar
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    Re: SWG slamming

    You can still give him a
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: SWG slamming

    Nah, that would be creepy

    Brian, Pool newbie in Atlanta, GA. 24k IG vinyl pool, Circupool SI-45 SWG (purchased 3/2014) , Hayward Pro Series Sand filter S220T, Pentair 1hp 2-speed superflow (thanks Jbizzle!), TF-100 test kit w/ SpeedStir
    Removed -> Hayward 1HP Super pump SP-1607-Z1-M

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