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Thread: Cal-hypo pellets needed

  1. Back To Top    #1
    AnnaK's Avatar
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    Cal-hypo pellets needed

    This isn't about our pool but about our well. If the BBB Method isn't the right place to post this, please move it to a more appropriate sub-board.

    We have a 450' deep well with the water level at 260'. The well water contains hydrogen sulfide which makes the water smell really REALLY bad, common in this part of Pennsylvania. Our water treatment plant includes a chlorine injector which broke down yesterday and requires a part that has to be special ordered.

    To sanitize the water we shock the well with cal-hypo pellets, and we're out! I need to find a new supply of this stuff but all I've found so far is a bulk supplier.

    What we have presently is a jar containing 4 lbs of calcium hypochlorite 72%, other ingredients 28%, available chlorine 72%. These are small white pellets, approximately the size of a cranberry. They have to be pellets so they drop all the way down the well head and not blow back or get stuck on the sides of the pipe like powder or granules might.

    I'm hoping that one of the pool professionals might know of a source where I can buy such a 4 pound jar.

    Thanks for your help!!!!
    — AnnaK —

    12,000 gal AGP, Hayward sand filter, Pentair 2-speed pump, timer.
    Please visit our Pool Issues pages for information about step weights, managing the solar cover, and PoolSkim.

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
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    Re: Cal-hypo pellets needed

    A well can be shocked with bleach. I believe I remember that the level to shoot for is 50ppm, but that is what is need to prepare the well when it is new. I know I had to find the volume of the well casing from the bottom to the water level and pour in enough bleach to reach the 50ppm.

    If you know how much chlorine you need, you can probably use bleach.

    We use a manganese filter to get rid of our H2S, but ours occurs naturally and is not a byproduct of iron reducing bacteria. Yours is apparently a bacteria issue since you have a chlorine injector.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
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  3. Back To Top    #3

    Re: Cal-hypo pellets needed

    Believe it or not, I've seen the pellets you're referring to at Home Depot.
    21' Leslies Beachland Ag Pool, 10,000 gallons, professionally installed (best money I ever spent) Hayward 16" sand filter w/Pentair two speed pump Fafco 4x20 solar heater,Aqua Trol RJ. Borates added. Hard plumbed.

  4. Back To Top    #4
    AnnaK's Avatar
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    Re: Cal-hypo pellets needed

    In our case they're sulfate reducing bacteria but the smell is the same.

    I'll have a look at Home Depot here to see if they carry the pellets. I prefer pellets over LC though that's what I'm using for now. It's a little more of a hassle using the liquid but it sure is better than nothing!
    — AnnaK —

    12,000 gal AGP, Hayward sand filter, Pentair 2-speed pump, timer.
    Please visit our Pool Issues pages for information about step weights, managing the solar cover, and PoolSkim.

  5. Back To Top    #5

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    Re: Cal-hypo pellets needed

    I think Wal-Mart sells a Cal-Hypo tab, too (HTH brand). If you are using any tri-chlor tabs around the pool just be sure not to mix the two up. That would be very dangerous.
    Josh Ulfers - TFP Supporting Vendor - josh@saltpoolguys.com - 888-725-8766
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  6. Back To Top    #6
    AnnaK's Avatar
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    Re: Cal-hypo pellets needed

    This isn't for the pool, it's for the well. And it's not tabs, it's pellets. Tabs would be too slow dissolving for this situation.

    I'm using LC for now because I have it on hand.
    — AnnaK —

    12,000 gal AGP, Hayward sand filter, Pentair 2-speed pump, timer.
    Please visit our Pool Issues pages for information about step weights, managing the solar cover, and PoolSkim.

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