What is a common maintenance task for RV water systems?

Regularly checking filter cartridges is a crucial maintenance task for RV water systems because it helps ensure that the water remains clean and safe for consumption. Water filters are designed to remove contaminants, sediments, and impurities from the water supply. Over time, these filters can become clogged or worn out, which can significantly reduce their effectiveness. By checking and replacing filter cartridges as needed, RV owners can maintain the quality of the water they use, preventing potential health issues associated with contaminated water.

Maintaining the integrity of the water system is essential for the overall safety and comfort of RV users, making this task an important component of regular RV maintenance. The other choices, while they may relate to water system upkeep, do not represent routine practices that are as commonly performed or as critical as checking filter cartridges. For example, draining a water heater every month or replacing all hoses annually might not be practical or necessary, and testing for lead contamination every year, while important, is not a routine maintenance task that reflects ongoing care of the water system.