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Thread: new SWG owner here, will i need to suppliment chorine?

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    Karmann's Avatar
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    new SWG owner here, will i need to suppliment chorine?

    Hi,

    I'm switching my pool over to salt tomorrow and will start using my SWG moving forward on my new pool.

    For the owners out there using a SWCG now, beside shocking the pool is there ever a reason to be adding chlorine supplements like Bleach or Trichlor so that the SWG isn't working so hard all the time?
    Martin,
    Midlothian, TX
    Pool built in August 2012, 17.2k gallons, IG Gunite/PebbleTec (Midnight Blue), 1k sq ft Washed Aggregate decking, Jandy Stealth 2HP Pump shared with Spa, Aqua-Pure Salt-Gen, Jandy 1.5hp wtr feat pump, Jandy CV580 Cart Filter, Jandy AE3000TR Heat Pump w Chiller, Polaris 280 with Booster, Dual Time Clocks with freeze protect feature, Jandy Pool (2) and Spa (1) Multi LEDs, 2 Skimmers, 4 Pool Returns, 6 Spa Jets, water features incl 3' sheer descents and spa spillway

    Click Here For My Pool Build Thread

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    GreatCanadian's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    Nope. For regular chlorination the SWG can easily handle it on its own in a 17k pool as long as you have CYA added. For a saltwater pool CYA at 70 ppm is ideal.
    13'x22'x52" 8,000 gallon ProSeries Pool with Borates
    Intex 110 pound Sand Filter with Zeobrite, 2650 gph pump, 0.95 hp
    Bestway SWG
    AquaPro ECO500 50,000 BTU heat pump
    GLI Whirlwind Solar Cover Reel, TF-100 Test Kit

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    Re: new SWG owner here, will i need to suppliment chorine?

    Not that I have found so far. No need except for shocking. My cell is oversized, though (rated for 40k gal).
    12k gal IG gunite, hayward cartridge filter, hayward ecostar VS pump, prologic controller, swg, polaris 280, built July 2012

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    Mod Squad jblizzle's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    You want to use bleach to initially get your FC up. And often it is a good idea to bump the FC up a few ppm before and/or after heavy use using bleach as well ... more precautionary than anything else.
    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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    Karmann's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    thanks for the input everyone

    I understand my CYA demand will increase after switching to salt but was really unsure about the rest or if adding additional chlorine in the form of bleach would have any adverse affects on my swcg.

    Do i understand this correctly, the swcg will only produce chlorine when it senses the level drop below the programmed setting on my swcg? So for instance while shocking the pool the swcg is not producing any chlorine at all?
    Martin,
    Midlothian, TX
    Pool built in August 2012, 17.2k gallons, IG Gunite/PebbleTec (Midnight Blue), 1k sq ft Washed Aggregate decking, Jandy Stealth 2HP Pump shared with Spa, Aqua-Pure Salt-Gen, Jandy 1.5hp wtr feat pump, Jandy CV580 Cart Filter, Jandy AE3000TR Heat Pump w Chiller, Polaris 280 with Booster, Dual Time Clocks with freeze protect feature, Jandy Pool (2) and Spa (1) Multi LEDs, 2 Skimmers, 4 Pool Returns, 6 Spa Jets, water features incl 3' sheer descents and spa spillway

    Click Here For My Pool Build Thread

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    Mod Squad jblizzle's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    You are not understanding it correctly. The % setting you choose is the % of time the cell is actually generating over a given amount of time ... the SWG itself does not sense the FC level (there are added equipment that attempt to measure the ORP with an additional sensor and then adjust the cell output as required, but the there seem to be questions about how well it works in outdoor pools).

    So you can adjust the FC level by changing the pump run time (triggering the flow sensor) and the SWG % setting. So there are multiple ways to add the same amount of chlorine to the pool.

    Run the pump for 8 hours at a 25% setting, will be generating for 2 hours.
    Run the pump for 4 hours at a 50% setting, will also generate for 2 hours.

    All the super-chlorinate function does is temporarily put the % setting to 100% so it is always generating, we do not recommend using this as it shortens the life of the cell.

    Adding bleach into the pool has no affect on the SWG.
    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
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    Christian's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    It depends on the SWCG. Usually you set the output at a percentage and adjust that percentage based on test results to get it in the sweet spot. That is how the AquaPure you have works.

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    Karmann's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    perfect thanks for that info Jason and Christian...

    I guess i should start reading the owners manual on my aquapure setup once i find it online somewhere so i can really understand how it works before I'm depending on it.

    All the original paperwork was misplaced by the plumber that did the installation when my pool was being built
    Martin,
    Midlothian, TX
    Pool built in August 2012, 17.2k gallons, IG Gunite/PebbleTec (Midnight Blue), 1k sq ft Washed Aggregate decking, Jandy Stealth 2HP Pump shared with Spa, Aqua-Pure Salt-Gen, Jandy 1.5hp wtr feat pump, Jandy CV580 Cart Filter, Jandy AE3000TR Heat Pump w Chiller, Polaris 280 with Booster, Dual Time Clocks with freeze protect feature, Jandy Pool (2) and Spa (1) Multi LEDs, 2 Skimmers, 4 Pool Returns, 6 Spa Jets, water features incl 3' sheer descents and spa spillway

    Click Here For My Pool Build Thread

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    Christian's Avatar
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    Re: new SWG owner here, will i need to suppliment chorine?

    Send me a private message I can get you a pdf copy or a link, whichever you prefer.

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    Re: new SWG owner here, will i need to suppliment chorine?

    Muriatic acid! And check your cell every few mos check Manufaacturer recommendation. Ppl add swg and assume it's hands off from there. It only makes cl and at a higher ph.this will tend to drift overtime higher. muriatic acid can be used to lower ph, not to mention clean the cell with a very diluted solution generally 10 parts h2o 1part muriatic acid. Calcium buildup on cell shortens life as does frequent cleaning.

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