In UV sterilizer plumbing, what action is recommended if the water flow ceases?

• A. Power off the UV lamp immediately.
• B. Hold water in the chamber if the flow stops to reduce the risk of thermal shock and breakage of the quartz tube and bulb.
• C. Vent the chamber to atmosphere to prevent pressure buildup.
• D. Disconnect the piping and drain the chamber.

Answer: (B)