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Thread: Calcium Chloride

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    Calcium Chloride

    I need to raise my CH in the pool. Do I need to buy this at the pool store or, can I use the ice melt that is 97% Calcium Chloride, If so should I dissolve the pellets first in water before I put it in the pool?
    Grecian/W a Step style,14ft by 30ft
    14,000 gallon,Fiberglass,
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    Deepend 5ft
    Method(BBB)

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    Butterfly's Avatar
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    Re: Calcium Chloride

    Froom Pool School:
    CH - Calcium Hardness

    Calcium hardness can be raised with calcium chloride or calcium chloride dihydrate. They are available in some areas as Peladow, Dowflake, Tetra Flake, or Tetra 94, often sold as a deicer by hardware stores, and some big box stores, in colder climates. Pool stores will carry either calcium chloride or calcium chloride dihydrate under a variety of names, including Hardness Plus, Balance Pak 300, Calcium Hardness Increaser, etc. Calcium products should be spread across the surface of the deep end of the pool.
    Most of us do dissolve it in a bucket of pool water.
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    Re: Calcium Chloride

    Thanks. I'm kinda new to the whole "household items" to keep your pool going good. This is going to save me alot of money this way. This site is awsome. If I think about the money I spent for the last 7years on chemicals. A new BBQ Grill is on its way now.
    Grecian/W a Step style,14ft by 30ft
    14,000 gallon,Fiberglass,
    Sand Filter
    Deepend 5ft
    Method(BBB)

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    JasonLion's Avatar
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    Re: Calcium Chloride

    Keep in mind that when you dissolve calcium chloride in water it gets rather hot. This isn't usually a problem as long as you are aware of it. You don't want to be reaching your hand into the bucket or spilling it on yourself right after mixing the calcium chloride with water.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    TripleB4me's Avatar
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    Re: Calcium Chloride

    Quote Originally Posted by JasonLion
    Keep in mind that when you dissolve calcium chloride in water it gets rather hot. This isn't usually a problem as long as you are aware of it. You don't want to be reaching your hand into the bucket or spilling it on yourself right after mixing the calcium chloride with water.
    Why does one need calcium chloride in a fiberglass pool? Is it for equipment reasons?
    20x40 IG Vinyl, 1.5 HP Whisperflo, Sta-Rite System 3 (300) Sq. ft Cart
    Intellichlor IC40 SWCG, 125,000 BTU Pentair heatpump, Polaris 280
    7' IG FG Spa, 2 HP Whisperflo, Pentair Dynamic III Cart (100) Sq. ft

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    Re: Calcium Chloride

    Quote Originally Posted by TripleB4me
    Quote Originally Posted by JasonLion
    Keep in mind that when you dissolve calcium chloride in water it gets rather hot. This isn't usually a problem as long as you are aware of it. You don't want to be reaching your hand into the bucket or spilling it on yourself right after mixing the calcium chloride with water.
    Why does one need calcium chloride in a fiberglass pool? Is it for equipment reasons?
    It helps prevent cobalt spotting and helps protect fiberglass from staining. Could be more reasons....?
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    JasonLion's Avatar
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    Re: Calcium Chloride

    Quote Originally Posted by Butterfly
    Could be more reasons....?
    No, those are the two significant issues.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Calcium Chloride

    MY CH is reading at 210 I would like be a little higher.
    Grecian/W a Step style,14ft by 30ft
    14,000 gallon,Fiberglass,
    Sand Filter
    Deepend 5ft
    Method(BBB)

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    Butterfly's Avatar
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    Re: Calcium Chloride

    Quote Originally Posted by brettman40
    MY CH is reading at 210 I would like be a little higher.
    Yep, the Recommended Level is 220-320 for fiberglass.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Calcium Chloride

    Quote Originally Posted by JasonLion
    Keep in mind that when you dissolve calcium chloride in water it gets rather hot. This isn't usually a problem as long as you are aware of it. You don't want to be reaching your hand into the bucket or spilling it on yourself right after mixing the calcium chloride with water.
    I know how that is. I was told the same thing and felt the bucket and it was hot. I also touched the end of the pole I was using and it was hot. Had to be careful when I was pouring it in.
    13,000 Plaster IG Pool approx
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    Re: Calcium Chloride

    Quote Originally Posted by mynewpool
    Quote Originally Posted by JasonLion
    Keep in mind that when you dissolve calcium chloride in water it gets rather hot. This isn't usually a problem as long as you are aware of it. You don't want to be reaching your hand into the bucket or spilling it on yourself right after mixing the calcium chloride with water.
    I know how that is. I was told the same thing and felt the bucket and it was hot. I also touched the end of the pole I was using and it was hot. Had to be careful when I was pouring it in.
    Also, use a non-reactive stirrer, like wood or plastic.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Calcium Chloride

    Quote Originally Posted by mynewpool
    Quote Originally Posted by JasonLion
    Keep in mind that when you dissolve calcium chloride in water it gets rather hot. This isn't usually a problem as long as you are aware of it. You don't want to be reaching your hand into the bucket or spilling it on yourself right after mixing the calcium chloride with water.
    I know how that is. I was told the same thing and felt the bucket and it was hot. I also touched the end of the pole I was using and it was hot. Had to be careful when I was pouring it in.
    The recommendation I've seen is no more than 2lb calcium chloride per gallon in the bucket, to avoid excessive heat.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
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