In The Swim 30 lb. Bucket pH Reducer for swimming pools is granular sodium bisulfate dry acid that quickly lowers pH and Alkalinity levels in pools and spas.
Active ingredient: 93% Sodium Bisulfate (Dry Acid)
Dry acid reduces pH and Total Alkalinity
Lowers pH and Total Alkalinity in pools, spas, and hot tubs
Helps maintain balanced water
No toxic fumes and safer to use than muriatic acid
2-1/2 pounds of In The Swim granular pool pH Down is equal to 1 quart of muriatic acid
Add pH reducer to your pool whenever pH levels rise above 7.6
Corrects pool pH water conditions to prevent skin irritation and damage to your pool and pool equipment
Easy to store and has a longer shelf life
Retest water after every dosage added, You can swim after 4 hours of circulation