How much Clorox pH Down to use?


Bronze Supporter
Dec 24, 2018
Columbus, OH
I usually use the pool math app to know how much of what to put in but I don’t see Sodium Bisulfate as an option.
On the PoolMath app, choose “dry acid” and it will tell you how much to add. I also use Sodium Bisulfate/“pH down“/dry acid instead of muriatic acid. PoolMath is a lifesaver!
Muriatic acid is preferred on TFP but I don’t want to mess with it and have had no issues using dry acid for two summers now (and I used to have to add it almost daily).