Which device is commonly used by small water systems to disinfect their supply?

Which device is commonly used by small water systems to disinfect their supply?

• A. Chlorine gas cylinders
• B. UV systems
• C. Hypochlorinators
• D. Chloramines

Answer: (C)

Disinfection for small water systems is usually done with a device that automatically injects chlorine into the water to leave a residual through the distribution system. This is a hypochlorinator. It doses a chlorine solution, typically sodium hypochlorite, at a controlled rate so free chlorine remains in the water as it travels through pipes and storage tanks. It’s favored for its simplicity, low cost, and safer operation compared with handling chlorine gas cylinders. UV systems can disinfect, but they don’t leave a residual in the distribution system and require reliable power and good water clarity. Chloramines describe a disinfectant form, not a standalone disinfection device. So the hypochlorinator is the common choice for small systems.

Disinfection for small water systems is usually done with a device that automatically injects chlorine into the water to leave a residual through the distribution system. This is a hypochlorinator. It doses a chlorine solution, typically sodium hypochlorite, at a controlled rate so free chlorine remains in the water as it travels through pipes and storage tanks. It’s favored for its simplicity, low cost, and safer operation compared with handling chlorine gas cylinders. UV systems can disinfect, but they don’t leave a residual in the distribution system and require reliable power and good water clarity. Chloramines describe a disinfectant form, not a standalone disinfection device. So the hypochlorinator is the common choice for small systems.