Durachlor Granular 25 lbs
- Provides 62% available chlorine
- Chlorinating concentrated granules
- For shocking and everyday chlorination
- Ultra fast dissolving granular particles
- Will not cloud water or cause scale
- UV Protected
Initial & Routine application: Initially treats pools with circulation pump on by adding 3 to 4 ounces for every 10,000 gallons of pool water. Repeat additions until chlorine levels reach 1-3 ppm. Use a pool brush on surfaces if this product settles on bottom of pool surface. Regular additions of 1 to 2 ounces of this product will be necessary to maintain 1-3 ppm of free available chlorine at all times. Actual dosages of product required to maintain the desired free chlorine residual will vary with sunlight, water temperature, bathing load, and other factors. Use a test kit frequently to determine and maintain the proper free chlorine residual.