What maintenance task must still be performed even when using chemical feeders?

Regularly testing water chemistry is an essential maintenance task that must be performed even when chemical feeders are utilized. Chemical feeders automate the process of adding balanced chemicals to the pool water, but they do not eliminate the need for manual water testing.

Testing the water chemistry ensures that the chemical feeders are functioning properly and that the appropriate chemical levels—such as chlorine, pH, alkalinity, and stabilizer—are maintained within safe and optimal ranges. Regular testing allows for timely adjustments when necessary, helping to prevent issues like algae growth, cloudy water, or imbalanced pH levels, all of which can compromise the health of pool users and the integrity of the pool itself.

In contrast, tasks like changing the pool liner, cleaning the pool surface, or installing new lighting may be important maintenance activities but do not directly relate to the ongoing management of water chemistry. These tasks focus on different aspects of pool upkeep, and none are as vital to the immediate safety and quality of the water as regular water testing is.