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Thread: Chlorinator injector clogs

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    Chlorinator injector clogs

    my equip is in my signature - we have a terrible time with the cl2 injectors clogging. the lifeguard kids have to switch out injectors every week, soak in acid, replace, repeat, blah. annoying to them and I worry about their safety with the liq cl2 and acid. I had a suggestion of getting CYA up to 100 ppm to reduce cl2 usage...not buying it. thoughts?
    163,000 IG 1992 fiberglass overtop 1962 gunnite, 1987 Swimquip Hi-Rate HRP-30 sand filters, 7.5 Hp 3p Marlow Pump; 4,500 IG fiberglass overtop 1962 gunnite, 2008 Hayward sand filter; Liquid Chlorine via Blue-White & Rola-Chem's, High Calcium well water, Located in W. Maryland.

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    Mod Squad JohnT's Avatar
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    Re: Chlorinator injector clogs

    I expect your problem comes down to your calcium level. Have you tried keeping your pH in the low end of the range. I'm not sure that will help with the low pH of the liquid chlorine, but it is an easy thing to try.
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    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Chlorinator injector clogs

    Yes pH is kept very close to 7.2- 7.3. Cal reading was a sweet 450 ppm this am. Guess we'll just have to deal with it- certainly not buying water.
    163,000 IG 1992 fiberglass overtop 1962 gunnite, 1987 Swimquip Hi-Rate HRP-30 sand filters, 7.5 Hp 3p Marlow Pump; 4,500 IG fiberglass overtop 1962 gunnite, 2008 Hayward sand filter; Liquid Chlorine via Blue-White & Rola-Chem's, High Calcium well water, Located in W. Maryland.

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    Richard320's Avatar
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    Re: Chlorinator injector clogs

    You better check the laws on CYA levels since this sounds like a public pool, and they tend to be heavily regulated.

    Look in the chlorine tank and ensure the pickup tube is a couple inches off the bottom, where all that white scuzzy stuff settles.
    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: Chlorinator injector clogs

    We're within regs. Thanks deputy roscoe. I can't believe nobody has had this problem.
    163,000 IG 1992 fiberglass overtop 1962 gunnite, 1987 Swimquip Hi-Rate HRP-30 sand filters, 7.5 Hp 3p Marlow Pump; 4,500 IG fiberglass overtop 1962 gunnite, 2008 Hayward sand filter; Liquid Chlorine via Blue-White & Rola-Chem's, High Calcium well water, Located in W. Maryland.

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    Richard320's Avatar
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    Re: Chlorinator injector clogs

    Quote Originally Posted by bgietka
    We're within regs. Thanks deputy roscoe. I can't believe nobody has had this problem.
    Not everyone is online all the time. There are two search functions. Up top next to the logout and down at the lower left. Lower left is a google search and seems to work better for obscure topics.
    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: Chlorinator injector clogs

    what kind of chlorine injector are you using? what kind of chlorine are you injecting?

    Im making this all up:

    the ph of bleach is around 12.6 which can quickly cause calcium to precipitate. The faster the chlorine mixes with water the faster the ph of the bleach drops. I would say water going over the injector at a faster rate, injecting at a slower rate, a wider opening for the injector all could be things that increase the rate of mixing and reduce the localized precipitation.

    If you were to take a small amount of high calcium water and add it to a larger amount of bleach, the ph of the bleach wouldnt be impacted so the calcium would precip. But if you took a small amount of bleach and added it to a large amount of high Ca water, the ph would drop immediately
    17,800 gallon, IG pool, 595 sq feet (17x35x4.5 avg rectangle), Hayward 525 cartridge filter, diamondbrite, 2 hp 2 speed hayward tristar filter, Stenner 45mhp10 automatically chlorinating

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    Re: Chlorinator injector clogs

    Do you have PH(Acid Injection) ? Ive been told to keep Chlorine upstream from the ph injection because it will cause calcification of the chlorine line. Ive done this to my commercial pools and still have clogs but not as frequent!
    Dont have my own pool yet , but Manage multiple Residential and Commercial accounts. Been in the Pool industry for ten years now and have had my CPO the entire time. I dont know it all but I've read some postings and am interested in learning more.

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