Will it ruin your pool pump if you run without a filter?

Running a pool pump without a filter is not advisable, as the pump motor needs water flowing through it for cooling purposes. In turn, the filter keeps large debris from circulating which would potentially damage the pump. Without a filter, harmful particles can reach the pool pump’s impeller and other vital components causing them to break down more easily.

In terms of pool pump longevity and energy efficiency, always operate the pump with a clean filter