Does the pump in the water fountain need to be working all the time to prevent stagnant water?

Yes, the pump in a water fountain generally needs to be working consistently to prevent stagnant water. Continuous circulation helps maintain water movement, which reduces the likelihood of algae growth and keeps the water fresh. If the pump is turned off for extended periods, the water can become stagnant and potentially develop odors or become a breeding ground for bacteria. Regular maintenance and operation of the pump are essential for ensuring water quality.