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Thread: Chlorine puck feeder questions

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    Join Date
    Oct 2010
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    Cypress, TX
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    Chlorine puck feeder questions

    Hello all,

    Our last pool had a SWG, our new pool has a Pentair 320 chlorine puck feeder.

    Question - How many pucks should I fill it with? Should I fill it all the way to the top? Some videos say to put 2 or 3 pucks in. Wouldn't it be easier maintenance to fill it and just top it off every so often? Do I need to turn the control knob down lower if I put more pucks in since there'll be more concentration of chlorine in the feeder?

    Next question - how long should a 40lb bucket of 3" pucks last? I bought Clorox brand at Costco because it had the same ingredient %'s listed as a higher end brand. I've probably already gone through 20lbs in 3 months - that seems like a lot, is it? I'm in Houston and we've had 100+ degree weather with lots of sun and we have no shade if that helps answer that question!

    Thanks in advance
    13,500 gal with sheer descents, pebblesheen, travertine coping, fire bowls, Pentair all around including remote and automation, chlorinator, borates, raised 7x7 spa in Cypress, TX.

  2. Back To Top    #2
    Mod Squad tim5055's Avatar
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    May 2014
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    Re: Chlorine puck feeder questions

    We generally don't recomend using a puck feeder as your primary source of chlorine. Pucks are almost half CYA, so your stabilizer levels continue to rise requiring ever higher levels of chlorine to have the same effective sanitation.

    The other thing that concerns me is the pucks you purchased. When I was in Costco yesterday they only had the Clorox "blue" tabs. Generally when. "Blue" is in the product name it implies that there is an additional ingredient, copper. Copper builds up in the water and can cause unsightly staining and blond haired folks to develop green hair.

    Read this for more information on how we recomend you chlorinate your pool. Pool School - How to Chlorinate Your Pool

    Now, as to your original questions - I doubt if you will get any/many responses as we just don't recomend pucks. It's kind of like posting on a vegan food forum asking for recomendations on preparation of steak. We know it exists, but just don't deal with it.
    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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    Mod Squad Jimrahbe's Avatar
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    Jul 2014
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    Re: Chlorine puck feeder questions

    Russ,

    What Tim says is 100% correct, but I have a different type of question..

    Many people here have switched from a non-SWG pool, to a SWG pool, and for the most part you won't find many that would switch back.

    I'm curious about your feelings about your new pool. How do you feel about the water? Do you notice any difference between the two pool? How does the water feel and what about any smell differences.

    Any feedback would be appreciated.

    Thanks,

    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP520 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2, added small 3 person Calder Spa.

  4. Back To Top    #4

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    Oct 2010
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    Cypress, TX
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    Re: Chlorine puck feeder questions

    Quote Originally Posted by Jimrahbe View Post
    Russ,

    What Tim says is 100% correct, but I have a different type of question..

    Many people here have switched from a non-SWG pool, to a SWG pool, and for the most part you won't find many that would switch back.

    I'm curious about your feelings about your new pool. How do you feel about the water? Do you notice any difference between the two pool? How does the water feel and what about any smell differences.

    Any feedback would be appreciated.

    Thanks,

    Jim R.

    Hi Jim,

    I feel the water is just fine, not much different overall compared to our salt water pool. It doesn't feel as soft but is just as easy to maintain (so far) other than I'm adding pucks every week to the feeder. It doesn't smell any different, and we aren't having to worry about any metal objects nearby rusting anymore. It was also eating our flagstone a bit, but now we have travertine anyway.
    13,500 gal with sheer descents, pebblesheen, travertine coping, fire bowls, Pentair all around including remote and automation, chlorinator, borates, raised 7x7 spa in Cypress, TX.

  5. Back To Top    #5

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    Oct 2010
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    Re: Chlorine puck feeder questions

    Also just as another follow up on this one.. I contacted Clorox and there is no copper in the Clorox Blue tabs.

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    Surf_ox's Avatar
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    Aug 2016
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    Re: Chlorine puck feeder questions

    Quote Originally Posted by russrimm View Post
    Hi Jim,

    I feel the water is just fine, not much different overall compared to our salt water pool. It doesn't feel as soft but is just as easy to maintain (so far) other than I'm adding pucks every week to the feeder. It doesn't smell any different, and we aren't having to worry about any metal objects nearby rusting anymore. It was also eating our flagstone a bit, but now we have travertine anyway.
    Im in cypress and your usage of 9 per week is about right. However using the pucks will cause the CYA to go through the roof hindering effectiveness of the chlorine. Then the pool store will sell you lots of stuff to fight the subsequent conditions(algae, CYA etc), shock and more pucks.

    I have since ditched the pucks unless we're going to go out of town for a week (not in near future) and gone with the method here using bleach from the Walmart.

    Read about it on the site. In the long run it will be cheaper.


    --------------

    Don't ever hesitate to try something new. Remember amateurs built the ARK and professionals built the TITANIC.
    13K; IG Pebble sheen [4,5,4] with sun deck; 2hp pentair cleaning the water through a Clean and Clear Plus; 2hp pentair flowing the natural rock waterfall and 3/4 hp powering the 2011 Pentair legend (AKA "THE DUDE")

  7. Back To Top    #7

    Join Date
    Jul 2016
    Location
    Philly Suburbs
    Posts
    27

    Re: Chlorine puck feeder questions

    I've just been topping mine off once a week and adjusting the setting based on my chlorine readings. I'm trying to finish out the season with the pucks I already bought and will switch to bleach if I run out or CYA gets too high. Next year I'll be installing a SWG in it's place.
    22,500 gallon in ground pool with vinyl liner. DE filter. Taylor K-2006.

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