Clorox pH down

lindz18

Well-known member
May 9, 2015
435
Southern TN
I searched the forums and could not find a close post to answer my question:

Can I use Clorox pH down to lower my pH? It is consistently showing 8.0 so I feel I need to lower it a tad. It says it is sodium bisulfate.

Thanks
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
33,053
Laughlin, NV
We do not recommend the use of Dry Acid aka Sodium Bisulfate. The sulfates build up in the water and can damage metals and concrete.

 

lindz18

Well-known member
May 9, 2015
435
Southern TN
That is just a fancy name for Dry Acid, Poolmath can give you the dose.

Since you own it, use it, but don't buy any more. It leaves sulfites behind which you don't want.
Thank you!!! What does the sulfate do? Does me having a vinyl liner help? I will use this one time, but will not use in the future. Thanks for letting me know and for the help as usual! You have helped me since day 1 through my CYA over 200 catastrophe from an inherited pool!
 

lindz18

Well-known member
May 9, 2015
435
Southern TN
That is just a fancy name for Dry Acid, Poolmath can give you the dose.

Since you own it, use it, but don't buy any more. It leaves sulfites behind which you don't want.
What would you recommend for my first chemical add? I don't want to take it too low! It says 28 ozs by volume to get it from 8 to7.5. My TA is 60.
 

Richard320

TFP Expert
LifeTime Supporter
Jan 6, 2010
23,930
San Dimas, CA (LA County)
What would you recommend for my first chemical add? I don't want to take it too low! It says 28 ozs by volume to get it from 8 to7.5. My TA is 60.
7.5 is a good target. If you miscalculated the pool volume, you've got plenty f wiggle room on either side.

Sulfites can damage saltwater chlorine generators and concrete. Your vinyl pool is in your favor. For me, I just don't like the idea of adding sulfur in any form. What conditions could cause it to start smelling? I don't know, and I don't wish to find out.
 
  • Like
Reactions: lindz18