An improved system for application of liquid streams to a substrate. The system incorporates open face flow channels for carrying the liquid away from fully enclosed flow segments prior to discharge along an unconstrained flow path. The present invention further provides an improved, self-aligning modular assembly for delivery of impingement jet to the liquid streams for diverting the direction of the liquid streams. The present invention further provides an improved arrangement for collection of the deflected liquid in response to application of the impingement jet without excess residue build-up.