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Thread: OK to use bleach and tablets to chlorinate?

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    Join Date
    Jun 2016
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    Massachusetts
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    OK to use bleach and tablets to chlorinate?

    I am going away for a few days so I was going to add some bleach and then use the Hayward Chlorinator while we are away. I was also planning on adding ~100 oz of Borax to increase the PH up to 7.5

    Thanks for any advice

    FAC = 3
    TAC = 3
    CH = 210
    CYA = 60
    TA = 80
    ph = 7.2
    40x20 in ground gunite - ~35k gallons - Hayward C5030, 525 sqft cartridge filter - 1hp Hayward Super Pump - Dolphin Triton vacuum - 2 skimmers, 4 return jets

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    Mod Squad tim5055's Avatar
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    May 2014
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    Re: OK to use bleach and tablets to chlorinate?

    Does you pH normally rise slowly like most pools do? If so I would just leave the pH alone.

    Following our methods your FC is already way too low (you should never be below 5 and target 7) and your CYA is too high and using the pucks is just going to drive it higher. If you are only going ot be gone 3 days I would bring it to shock level for your CYA level (24 FC) just before you leave and be ready to add bleach when you get back.

    What test kit are you using as we don't commonly see TC reported?
    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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    mikemass's Avatar
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    Re: OK to use bleach and tablets to chlorinate?

    A few days? Sure. A few weeks or a whole season? No. Enjoy your few days away. Hope it's for pleasure. Have fun!
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
    You Need: Bleach, a A Test Kit & a Bookmark to "Pool School". Now what's your question?

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    Jun 2016
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    Massachusetts
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    Re: OK to use bleach and tablets to chlorinate?

    What test kit are you using as we don't commonly see TC reported?[/QUOTE]

    This was from a local pool store but I measured with a Taylor K2006 test kit last night and had essentially the same results. I only went to the local pool store to test for phosphates because I've had some small pop-ups of green algae in the corners of the stairs, likely due to low chlorine and not brushing it all off. Phosphates were tested at 100ppb. I just purchased a good stainless steel brush, added algaecide 2 days ago, then double shocked the pool last night. I had been keeping the solar cover on most of the time and the water got really warm and chlorine dropped.
    40x20 in ground gunite - ~35k gallons - Hayward C5030, 525 sqft cartridge filter - 1hp Hayward Super Pump - Dolphin Triton vacuum - 2 skimmers, 4 return jets

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    Mod Squad tim5055's Avatar
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    Re: OK to use bleach and tablets to chlorinate?

    I'm going to be honest, mixing pool store advice/testing with TFP methods is just another recipe for disaster.

    When we see algae we don't use algecide. Why? because algecide is a preventative treatment - it really does little to eliminate an active algae growth. The small print on the bottle usually says not to use for an active algae growth or eliminate algae before using. The pool store sells it to you for algae, because - they make money on the sale.

    We do not "shock" our pools, we follow the SLAM Process when there is a problem.

    It's your choice which methods you follow, but I suggest staying out of the pool store.
    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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    Join Date
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    Massachusetts
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    Re: OK to use bleach and tablets to chlorinate?

    "Does you pH normally rise slowly like most pools do? If so I would just leave the pH alone."

    The ph level has dropped over the past ~4 weeks from 7.5 to 7.2 so I figured I'd should add borax. Thanks for the advice, this is my first season with a pool (just bought the home in the winter) so I started with typical pool store advice but I am trying to migrate to TFP methods.
    40x20 in ground gunite - ~35k gallons - Hayward C5030, 525 sqft cartridge filter - 1hp Hayward Super Pump - Dolphin Triton vacuum - 2 skimmers, 4 return jets

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