Adding Calcium

tunacan

Active member
May 17, 2012
37
Hello,

I'm about to bring my calcium level from 140 to 260. I was told the calcium chloride can be found as a de-icer. I searched for "calcium chloride" at an auto parts store and got my hands on some.

I've posted a pic of the front and back of the package...can someone in the know confirm that this stuff should go in my pool? I'm concerned about additives etc.

Also, I understand that I should pre-dissolve in a 5 gallon bucket and only add 10lbs per 24 hours (15K gallon pool). Correct?

Thank you in advance!


Ron
 

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jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,260
Tucson, AZ
I do not think that is the right stuff ... the MgCL2 and inhibitors scare me.

From Pool School Recommended Pool Chemicals
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.
 

JamesW

TFP Expert
Mar 2, 2011
16,730
You don't want to use that. It's a combination of sodium chloride, magnesium chloride and zinc sulfate. It does not contain calcium.
 

tunacan

Active member
May 17, 2012
37
Thank you James, Jason, and anon.

The inhibitor also scared me, and my gut said there shouldn't be anything other than calcium chloride going in the water.

Thank you for the amazon link, anon....I just ordered a bag.

Have a good night gents.

Ron