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...
The twist on is your best bet. Didn't realize the black valve was leaking slowly draining out the liquid leaving the solid. Wouldn't dump, a lot of work with a drain auger and it loosened up and drained. Added the twist on and problem solved. Ron
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RV projects you can tackle on your own with a few friendly pointers.4,395 PostsLatest Activity: Oct 12, 2025