It's not necessary or efficient to run your pool pump all the time, as this can lead to excessive wear and tear on the equipment and increase energy costs. The general recommendation is to run your pool pump for at least 8 hours per day during the swimming season to ensure proper circulation and filtration of the water.
The specific amount of time you should run your pump depends on the size of your pool, the frequency of use, and your local climate. Consult a professional pool service technician or refer to your pump manufacturer's recommendations for optimal pump operation.