As we mentioned above, regenerative pumps are a type of shower pump that use two counter-rotating impellers to capture and reuse the kinetic energy from the outflow of water.On the other hand, centrifugal pumps rely on an electric motor to generate power and are typically less efficient than regenerative pumps due to their reliance on electricity. Additionally, centrifugal shower pumps require more complex systems and additional equipment for installation which can lead to higher costs.