Cyclones innovation involves an improved ball-type check valve for use in conditions such as basement sewage backups. In this improved check valve, a one-piece ball retainer is provided which consists of (1) a retainer ring for the ball, (2) a base, and (3) retainer ring and the base. This allows the interior passageway (through the retainer ring) to be relatively large in relation to the peripheral channels. This has two effects. When downward flow begins, fluid velocity through the interior passageway is relatively high, which helps ensure rapid settling of the ball on the retainer ring. As downward flow continues through the peripheral channels, the small size of the peripheral channels causes continued high velocity, resulting in a relatively low pressure area below the ball compared to the pressure above the ball. This ensures that the ball remains securely settled on the retainer ring. The entire valve can be assembled in a free-standing housing. This improved valve is easier and less expensive to manufacture than valves having flexible skirts, and it can be used with any size casing or tubing. Ball Check Valves have many advantages over conventional Swing Disc Check Valves. Cyclone Ball Check Valves operate in a very simple, basic manner. The valves have only one moving part the Ball. When water starts, the flow moves the ball upward and into the track completely out of the flow path. When the water stops the liquid begins to flow in reverse, the ball moves back to its original seated position and prevents further backflow. The ball is made of hollow polypropylene covered by a thick vulcanized resistant rubber.