National Dolphin Dumping Question
Hello, We just purchased a 2002 National Dolphin and can't be sure which valve is for black water and which is grey water. Can anyone help me solve the mystery? Thanks so much! Richard ...
Forum Discussion
Looking at your picture, the small pipe on the side is probably the grey water. suggest using a clear extension on the end of your slinky, and watch what comes out. Pull the one on the big pipe first, after it finishes, close it and open the smaller one on the side. the grey water will flush your hose. Another way to tell is use one of the bright blue deodorizersin the toilet, and again watch what comes out.
