Tideflex Mixing System (TMS) greatly improves the quality of drinking water in finished water storage reservoirs. TMS is a combination of patented Tideflex check valve technology and a piping manifold that separates the inlet and outlet. It can be installed in new or existing water storage tanks of all shapes and sizes to eliminate stagnation and short-circuiting. The all-elastomer Tideflex check valve renders the system virtually maintenance-free.