True or False: A hotel with high domestic water Legionella positivity can eliminate control measures with a properly designed supplemental disinfection system.

The statement is false because a hotel with high domestic water Legionella positivity cannot solely rely on a properly designed supplemental disinfection system to eliminate all control measures. While supplemental disinfection systems, such as thermal or chemical disinfection, can significantly reduce Legionella levels in water systems, they should be part of a comprehensive water management program that includes various control measures.

These control measures typically involve monitoring and maintaining water temperatures, regular flushing of plumbing systems, minimizing water stagnation, maintaining proper water pressure, and ensuring that any water features (such as fountains or hot tubs) are properly managed. Merely implementing a disinfection system without these additional precautions may not effectively eliminate the risk of Legionella growth and dissemination.

Therefore, a holistic approach that combines multiple strategies is essential to effectively control Legionella in water systems, making the assertion that control measures can be eliminated inaccurate.