If purchasing calcium chloride, be sure that it is pure enough for pool use. Some manufacturers have started allowing bromine in their calcium chloride, which is not good for chlorine pools.
I copied that because I bought some Calcium Hardness Increaser today at Lowes and now I am worried
that it isn't what I should have bought. I didn't see until I got home that it says it's for spa's.
It has Calcium Choloride 21% and other ingredients 79%
How can I know what the other ingredients are?
It is a liquid and says it increases the level of calcium hardness in spa water.
What do ya'll think?