I own a 2009 29" Holiday Rambler Savoy SL. I have one dump valve that I can open the black water valve, empty it and then open the grey water valve and empty that one. I have replaced the valves 3 tim...
Some new trailers come with separate black and gray valve connections. However, I think the best solution is the one mentioned above about adding a new gate valve at the end of your present single connection point. You could even do away with the cap if you wish if you use this. Twist on gate valve. Barney
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RV projects you can tackle on your own with a few friendly pointers.4,395 PostsLatest Activity: Oct 12, 2025