Granular Trichlor 50LBS

Master your water chemistry with the professional-grade power of Granular Trichlor 90. This 50 lb bucket contains highly concentrated 99% Trichloro-S-Triazinetrione, providing a minimum of 90% available chlorine. Unlike standard shocks, this formula is UV-stabilized with built-in cyanuric acid, preventing the sun's rays from burning off your chlorine residual and ensuring long-lasting protection. 

Designed for heavy-duty sanitation and targeted algae destruction, these granules are particularly effective as a spot treatment for black algae on white plaster and aggregate pool surfaces. The slow-dissolving nature of the granules allows them to sink directly to the pool floor to attack stubborn algae at the source. Because it contains no calcium, it is an ideal choice for areas with hard water, preventing scale buildup and maintaining crystal-clear clarity. 

Key Features

• Maximum Concentration: Formulated with 99% Trichlor to deliver 90% available chlorine, making it one of the strongest solid sanitizers available.
• UV Stabilized: Contains built-in stabilizer (CYA) to protect chlorine from sunlight degradation, extending the life of every application.
• Ultimate Algae Killer: Specifically engineered to sink and destroy black and green algae on the bottom of plaster pools.
• Calcium-Free Formula: Won't increase calcium hardness, protecting your pool equipment from scale and preventing cloudy water.
• Cost-Effective Bulk Size: The 50 lb commercial-grade pail offers the best value for long-term maintenance of large residential and commercial pools.