My eheim spraybar output is literally nothing. the water trickles out of the spray bar. I cleaned the tubes out 2 weeks ago and the flow was fine if not better than when I first started it (I also cleaned some of the internal sponges and stuff). Ive had it runnin since august do you think I should bring it in for a cleaning and replace the stuff inside of it like the sponges and clay thingys?