Norweco 10lb Blue Crystal Chlorine Tablets for Aerobic & Septic Systems | Pool, Spa & Wastewater Treatment | Long-Lasting Sanitizer for Clean Water Maintenance

Blue Crystal disinfecting tablets are the first microbiocide specifically developed for use in residential wastewater treatment applications. Using a proprietary grade of calcium hypochlorite as the active ingredient, Blue Crystal tablets are manufactured to provide a consistent chlorine dose. Blue Crystal tablets automatically adjust their dissolve rate in direct proportion to the rate of incoming flow. Residential treatment plant owners and operators are able to meet regulatory disinfection requirements with a product that is inexpensive, safe and easy to use. Safe for use in all domestice wastewater treatment systems.

70% available chlorine, specifically formulated for residential wastewater treatment systems

Reduces 99% of bacteria within the first ten minutes of contact

Approved by USEPA for wastewater disinfection

Economical and convenient to use

Protects landscaping when used with spray irrigation

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