Calcium dropped slightly

[JohnA902]

PH 7.5
FC 4-5
TA 90
CYA 30
CH 225

CH was always 250 but rain and draining a bit must have bumped it down.

My question is how can I add calcium carbonate without spending a fortune? I know Leslies sells "calcium hardness plus" but can I find the same thing at Walmart or a box hardware store? If so, is identical in terms of fineness/granularity?

Thanks.


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[NeedMoreSun]

Calcium chloride is sold as deicer at Home Depot and big box stores up North there. Brands are DowFlake and Tetra.

 

[kcindc]

Other terms are hardness increaser.

I order mine via Amazon and I get 25 lbs at a time as it is more economical. Seems like you need about 25 lbs to get your CH in the recommended range. See pool math to determine how much you need. It will last until you need it again.

Here are two that are on Prime: Amazon.com : Pool Mate 1-2825 Calcium Increaser for Swimming Pools, 25-Pound : Patio, Lawn Garden
and
Amazon.com : Robelle 2825 Calcium Plus for Swimming Pools, 25-Pound (Discontinued by Manufacturer) : Swimming Pool Ph Balancers : Patio, Lawn Garden

 

[pooldv]

More here on pool chems, Pool School - Recommended Pool Chemicals

 

[JohnA902]

Great!

I searched Lowes and couldn't find anything. Found a 25lb tub on Amazon with prime for $33. Can't beat that. Similar to the pool mate above.


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