How do I add washing soda to my pool?


LifeTime Supporter
Sep 27, 2007
So my new pool startup was 3 days ago and my pH is still less than 6.8 with a TA of zero. My FC is fine at 6 and the CYA is starting to increase @ 10.

I think it is time to add washing soda. How do I add it? Stocking over a return? Is this the right choice?


TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
Silver Spring, MD
Washing soda would be fine, or you can use baking soda and borax. The best way to add washing soda is to pre-dissolve it in a bucket of pool water and then add the mixture slowly to the skimmer. You can also distribute the powder across the surface of the pool, though there are some minor risks to that approach (you don't want the powder settling on the bottom undissolved).