The PowerPulse Massage Dual Shower Head by Waterpik worked great for the first week, and then began to leak. The leak was significant enough to reduce the water-flow to the shower heads. The large leak emanates from the base of the large shower head where the shower head rotates around a ball socket-like device. I attempted to use several products to stop the flow of the water, but each of these failed to stem the flow of water. Very unhappy with the quality of the Waterpik product.