I just read about this automated sewer hose retrieval system that is pretty neat. It might just take some of the fun out of RVing. lol! It'll make a commodian jump for joy. The valve is relocated to the end of the sewer hose. All that you have to do is put it in the sewer drain. When you have flushed the lines, just hit the button and it automatically retrieves itself. No more splashing in poop. I wished that I could have invented this. I don't know the cost, but they also make 12v electric gate valves ~$100 for sewer dumping. I might buy this before I put in that HDTV. Phase Four industries makes the Waste Master and Drain Master. Here's the web site. http://www.phasefourindustries.com/