If you plan ahead and add a small inline shutoff valve at the flusher input you don't have to worry about someone accidently turning on the water at the hose bib. This way you don't have to disconnect the flusher hose each time you flush the tank. I purchased one in Home Depot's garden department for about $2. I shut off the flush hose at the flusher input and close the door. I also shut it off at the hose bib. I have done this for the past 7 years as a full timer using both methods of dumping (4inch waste sewer hose or Sani-Con System) without anyone accidently turning it on since they would have to turn on 2 valves, one of which is inside the compartment.