Why capacitors not used in pumps?

Capacitors are not typically used in pumps because they are primarily designed to store and release electrical energy, whereas pumps require a continuous flow of mechanical energy to move fluids. Pumps operate through mechanical mechanisms, such as rotating impellers or pistons, which are driven by electric motors rather than relying on stored electrical energy. Additionally, the operational demands of pumps, such as pressure and flow rate, are better met by motors and other mechanical components rather than capacitors.