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Thread: Spa purge vs massive chlorine shock

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    Spa purge vs massive chlorine shock

    So I am replacing the water in my spa and I read the decontamination procedure referenced in the 'how to use chlorine' sticky where it says to raise the FC to 100 ppm chlorine for 30-45 min before draining. So apparently they are using bleach in place of a product like spa purge.

    Has anyone tried this, and had a chance to compare the results with a spa purge product? It seems much much cheaper and takes much less time. Does the 100 ppm shock replace the need for a product like this? My CYA is a little high at 50 ppm so I worry 100 ppm might not be enough to decontaminate everything within an hour.

    Also, is it safe for the spa components aka heater, pumps, pipes, walls, pillows etc to be exposed to that level of chlorine? I prefer not to have the marbled texture look of my tub completely bleached white. Also concerned about my cover where the procedure says to cover the tub while circulating.
    Intex 15'x48" AG metal frame pool (4,440 gal), Krystal Clear (1600) 14" sand filter, Taylor K2006 test kit, Intex Deluxe Maintenance Kit/vacuum (love it!), Intex Deluxe Skimmer, BBB.

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    Mod Squad tim5055's Avatar
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    Re: Spa purge vs massive chlorine shock

    Are you having issues with hot tub lung/rash/itch? Is there a reason why you are looking for a decontamination protocol?

    The 100ppm FC procedure referenced is actually posted on another website that TFP has no control over.

    For most hot tubs a simple draining and use of Aah-Some cleans up most "dirty" tubs. Ahh-Some Water Cleanser
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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    Re: Spa purge vs massive chlorine shock

    Quote Originally Posted by tim5055 View Post
    Are you having issues with hot tub lung/rash/itch? Is there a reason why you are looking for a decontamination protocol?

    The 100ppm FC procedure referenced is actually posted on another website that TFP has no control over.

    For most hot tubs a simple draining and use of Aah-Some cleans up most "dirty" tubs. Ahh-Some Water Cleanser
    I have high-ish chlorine demand and CC levels, just wondering if using 100 ppm chorine for 30-45 min is enough to replace the need for a product like ahh-some or spa purge when changing water.
    Intex 15'x48" AG metal frame pool (4,440 gal), Krystal Clear (1600) 14" sand filter, Taylor K2006 test kit, Intex Deluxe Maintenance Kit/vacuum (love it!), Intex Deluxe Skimmer, BBB.

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    Isaac-1's Avatar
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    Re: Spa purge vs massive chlorine shock

    The problem may be biofilm build up which chlorine alone may have trouble penetrating, that is the wonderful thing about Ahh-Some it flushes out the biofilm gunk and lets you drain it away.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: Spa purge vs massive chlorine shock

    I am not a spa person but I would note that the 100 ppm suggestion came from a long ago post in another forum that is now virtually closed.
    Dave S.
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    Mod Squad pooldv's Avatar
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    Re: Spa purge vs massive chlorine shock

    I would also recommend using ahhh-some to clean up your tub. Here is our version of How do I use Chlorine in my Spa (or pool)?
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    Re: Spa purge vs massive chlorine shock

    Quote Originally Posted by pooldv View Post
    I would also recommend using ahhh-some to clean up your tub. Here is our version of How do I use Chlorine in my Spa (or pool)?
    Right that is the sticky that references this procedure.

    I gave it a go and drained and a good rinse and the walls seem to be fine. Will note if chlorine demand improves or not
    Intex 15'x48" AG metal frame pool (4,440 gal), Krystal Clear (1600) 14" sand filter, Taylor K2006 test kit, Intex Deluxe Maintenance Kit/vacuum (love it!), Intex Deluxe Skimmer, BBB.

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