Which of the following activities must be done regularly in order to maintain the water quality in automatic watering systems?

• A. Flush cage rack water lines
• B. Sanitize water lines and connectors
• C. Change in-line water filters
• D. All of the above

Answer: (D)

Maintaining water quality in automatic watering systems requires a routine approach that addresses cleanliness, microbial control, and filtration effectiveness. Flushing cage rack water lines removes stagnant water, sediment, and biofilm that can accumulate and harbor microbes. Sanitizing water lines and connectors reduces microbial contamination and helps prevent cross-contamination between cages. Regularly changing in-line water filters keeps filtration functioning properly, preventing clogging and reducing the growth of microbes in the filter itself. When all these steps are performed on a regular schedule, the system remains clean, safe, and reliable, which is why all of these activities are needed.