Which of the following is a septic system maintenance task?

Regular pumping, inspection, and record keeping are fundamental maintenance tasks for septic systems. Pumping the septic tank routinely, typically every 3 to 5 years, helps prevent solids from accumulating and clogging the system. Inspections allow for the identification of potential issues before they escalate into significant problems, ensuring that the system operates efficiently over its lifespan. Maintaining accurate records is also crucial, as it provides a history of the system's performance and maintenance practices, which can be valuable for future inspections or property transactions.

While installing new filters annually and using biodegradable cleaners can contribute to the overall care of a septic system, these actions alone do not encompass the essential routine maintenance required for the proper functioning of the system. Changing the septic tank every five years is not a standard practice, as tanks can often last much longer if maintained properly. Therefore, regular pumping, inspection, and record keeping are key elements that are necessary for effective septic system maintenance.