Shower/Kitchen Sink Drain clogged
According to the manual diagrams for my 1997 Land Yacht 33, the kitchen sink drain and the shower drain join somewhere above the floor and have a common pipe to the grey tank. If I fill the kitchen sink and drain it, it flows into the show pan. If any water is draining from the shower pan, it is too small to detect. The clog, I think, is right at or after the joining of the two drain pipes.
I have tried a plunger. I have tried a green clog dissolver. I have tried baking soda and vinegar. I am down to the last choice of using a snake. If the diagram is correct, the snake will probably only work by going through a cleanout that is between the two drain systems. The problem is, though the diagram shows the cleanout, it does not tell me where it is. Anyone know where to find it?
Also, if there is a better idea, I am more than willing to look at it.