Which solid chlorine compound is used when a slow release of chlorine over time is desired?

Trichloroisocyanuric acid, commonly referred to as Trichlor, is a solid chlorine compound that is specifically designed for slow release of chlorine over time. This slow-release feature is particularly advantageous in maintaining a consistent level of chlorine in the pool water, which helps to effectively manage bacteria growth and keep the water sanitized.

Trichlor is often utilized in floating feeders or in-line chlorinators, allowing it to dissolve gradually and provide a steady supply of chlorine without the need for frequent manual addition. This gradual release is beneficial for pool operators, as it reduces the need for constant monitoring and dosing, thereby making the chlorination process more efficient.

In contrast, other chlorine compounds such as Dichlor are more suited for quick releases, and while they can also contribute to sanitation, they do not provide the same extended release benefits that Trichlor does. Calcium hypochlorite and sodium hypochlorite, being forms of chlorine typically used for shocked treatments or immediate chlorination needs, do not offer the slow-release characteristic that Trichlor is known for, making them less effective for prolonged disinfection in situations where a steady release of chlorine is necessary.