Abstract: An apparatus for selectively recirculating, conditioning, sorting and collecting the balls and discharging the bails from a pipe cleaning system utilizing recirculating foam rubber balls includes a housing having a dividing wall defining an inlet chamber on one side thereof and a collection chamber on the other side thereof, the inlet chamber having an inlet and the collection chamber having an outlet. A movable plate further divides the collection chamber into a acceptable ball chamber and a rejected ball chamber. A roller arrangement is operably connected with the housing and cooperates with the movable plate to condition and sort the balls in the system into the rejected ball chamber and the acceptable ball chamber. The collection chamber has a movable screen which selectively controls the flow of balls from the acceptable ball chamber to the outlet.