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Thread: Household Chemical for hardness

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    Default Household Chemical for hardness

    Is there a household chemical I can use to increase water hardness?

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    waterbear is offline Lifetime Member Sniggle Mechanic waterbear 4 stars waterbear 4 stars waterbear 4 stars waterbear 4 stars
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    Default Re: Household Chemical for hardness

    calcium chloride. Used as a deicer and in making pickles and Tofu. Usually available in 50 lb bags. Tetra is a good brand for pool use, btw. Either the dihydrate or the anhydrous is ok to use.
    11.75'x23.75' kidney 6.5K gal IG fiberglass pool/300 gal acrylic spillover spa combo; Aqualogic automation/SWCG; Pentair Clean and Clear 150 cart filter; 1.5 hp uprated 2 spd Pentair Whisperflo pump; PF:17
    Retired pool store and commercial pool maintenance guy.

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    Default Re: Household Chemical for hardness

    You're in NJ -- a very high proportion of pools in the North East have vinyl liners.

    If YOUR pool has a liner, you don't NEED calcium hardness, from any source! Pool stores just like to sell it to everybody, even though only concrete pools need it!

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    Default Re: Household Chemical for hardness

    If you have a heat pump do you have to be concerned? We have a vinyl lined pool with low calcium

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    Default Re: Household Chemical for hardness

    With high calcium, yes. With low calcium, no.

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    Default Re: Household Chemical for hardness

    Thanks PoolDoc! I won't worry about raising the levels.
    doughboy 24x24 AG round 16,100 gal with 3.5 and 6.5 deep end. Doughboy sand filter. Doughboy 1 hp pump. Tropi-cal 75k btu heat pump.

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