How long to wait for adding other chemicals after muriatic acid addition?


Bronze Supporter
Aug 10, 2017
How long should I wait to add other chemicals after adding muriatic acid?

For example, I want to raise calcium hardness by adding 8lbs of calcium chloride, but I just added 20 oz of Muriatic acid, so not sure if I should wait over night or if it can be done right away, or?


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
Only two items that should not be added at the same time is muriatic acid and liquid chlorine. Wait 15 minutes or between those.

You can add your calcium now. No issue.