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GLB pH Down

GLB pH Down


GLB pH Down

SKU: 71252A

In stock

GLB pH Down


Use pH Down to lower the pH of your pool water and help fend off scale formation, prevent cloudy water and most importantly, keep your swimmers comfortable.

What’s in the Box

  • 1 x GLB pH Down


  • Sodium Bisulfate: 95%
  • Inert Ingredients: 5%


      • The most efficient and economical use of chlorine is obtained when the pH of the water is maintained at all times between the values of 7.2 and 7.8. Between these two levels, eye irritation will be reduced to a minimum and equipment life will be prolonged.
      • When the pool water pH value is above 7.8, as determined by the use of a pH test kit, add 4 oz. (1/4 of a pound) of GLB pH Down while pump is in operation for each 10,000 gallons of water by distributing it into the deep end of the pool (but not near metal fittings or the skimmer).
      • Allow 6 to 8 hours for distribution of the chemical throughout the pool, then recheck the pH.


      • Compatible with chlorine, bromine, salt water Chlorine, ozone, biguanide and mineral sanitizing systems



      Most products purchased from our online shop within the last 30 days are eligible for return. Please review our return policy to see the list of items that cannot be returned.

      Some major items that are non-returnable:

      • Gift cards
      • Electronics
      • Pumps / Motors
      • Hot Tubs
      • Closeouts
      • See return policy below for made-to-order/special-order return eligibility.