An embodiment provides a device for assisting fluid distribution that includes a ring having an inner surface disposed over an emitter tube and an engagement portion to secure the ring to the emitter tube. Another embodiment provides a flow-control system that includes an emitter tube having spaced orifices therein, emitters positioned within the emitter tube adjacent the spaced orifices, and spaced clips positioned on the emitter tube, the clips having an inner surface disposed over the emitter tube and an engagement portion to secure the ring to the emitter tube. Another embodiment provides a method for assisting fluid distribution that includes the following steps: selecting an emitter tube； installing emitters within the emitter tube； and mounting, to the emitter tube, rings, each having an inner surface disposed over the emitter tube and an engagement portion to secure each ring to the emitter tube.
