What is the correct disinfectant ratio for mixing a bleach solution?

• A. 10 parts water to 1 part bleach
• B. 1 part bleach to 10 parts water
• C. 1 part bleach to 1 part water
• D. 2 parts bleach to 8 parts water

Answer: (B)

Mixing bleach to the right dilution sets how strong the disinfectant is. For general surface disinfection in athletic facilities, a standard practice is one part bleach to ten parts water. This dilution provides enough active chlorine to kill many common pathogens when given proper contact time, while remaining safer for gym surfaces and equipment. Using less water (more concentrated bleach) can damage materials and produce harsher fumes, whereas using more water (weaker solution) may not effectively disinfect. Always pre-clean dirty surfaces, apply the solution, observe the recommended contact time, and use a fresh mix daily; never mix bleach with ammonia or acids.