[QUOTE=ColoradoRick;839889]Since my trailer has three tanks (one black and two gray), I use these for the gray going to the kitchen (the others are combined into one sewer drain). I just run an old garden hose from the gray to the sewer head. This may be an option for you.
Great idea. I have a separate gray for the galley. I have been using the standard sewer hose and using a Y connector to connect to the other gray/black hose and then to the site dump hole. Now I can save time by using this type of cap and one of my extra sewer hoses to drain the galley. Thanks for the tip.