55 Gal. Drum - Liquid Chlorine Pool Shock | Commercial Grade 12.5-15% Sodium Hypochlorite

55 Gal. Drum - Liquid Chlorine Pool Shock | Commercial Grade 12.5-15% Sodium Hypochlorite

  • $314.99
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55 Gallon Drum – Liquid Chlorine Pool Shock, Commercial Grade 12.5-15% Sodium Hypochlorite | NSF 50/60 Certified

Commercial-grade sodium hypochlorite liquid chlorine NSF-grade. This 12.5-15% strength sodium hypochlorite is available in 55-gallon drums. Easy-to-use, fast, and effective – no mixing required. For commercial pools, feed via an automatic chemical controller and peristaltic metering pump. A great alternative to tablet and granular chlorine products. No build-up of scale or cyanuric acid (CYA-stabilizer). Useful for many industries including power washing and commercial cleaning. Available to the discerning pool and spa operator from Leisure Pool & Spa Supply, Inc.

Each drum weighs 650 lbs. (gross). Ships on a pallet that measures 48" X 42" X 48". Available to ship in the lower 48 states, Canada, and Mexico!


  • Order from our online store today – SAME DAY SHIPPING! 
  • Powerful, Fresh, 12.5% Sodium Hypochlorite
  • Certified NSF 50 & NSF 60 for use in Drinking Water Treatment!
  • Perfect for pool sanitation or commercial cleaning
  • High-quality, American made liquid chlorine
  • EPA Reg. No. 55852-3
  • Ships via LTL Common Carrier with Lift-Gate Service. 

    Instructions For Use

    For a new pool or for spring start-up,  chlorinate with 1 gallon of product for every 10,000 gallons of water to yield 5 ppm. Check the level of available chlorine with a test kit. Adjust and maintain pool water pH between 7.2 and 7.6. Adjust and maintain the alkalinity of the pool to between 80 to 100 ppm.

    To maintain the pool, add manually or by a feeder device 11oz of this product for every 10,000 gallons of water to yield an available chlorine residual between 0.6 and 1.0 PPM by weight. Stabilized pools should maintain a residual of 1.0 to 1.5 PPM of available chlorine. Test the PH, available chlorine residual, and the total alkalinity of the water frequently with appropriate test kits. The frequency of water treatment will depend upon temperature and the number of swimmers.

    Every 7 days or as necessary, super chlorinate the pool with 52 to 104 ounces of product for every 10,000 gallons of water to yield 5 to 10 ppm available chlorine by weight. Check the level of available chlorine with a test kit.  Do not chlorinate the pool within 24 hours prior to discharge.


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