Quote:
Originally Posted by JohnL
I have a 2006 Denali and there are three drains. I am really new to all of this and this is my very first TT (had the unit for three weeks). The three drains are not marked and my gray water is backing up into the sinks. If anyone in this forum has a unit with three drains, how do you tell them apart?
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I have three valves but two of them are marked One marked toilet and other marked bath. The third is unmarked and is for the kitchen gray.
So to help with your question. If you can actually see all three valve bodies. The Large one will be your black water. The two others should be gray, UNLESS you have two toilets in you trailer then you need to figure out what is what and mark them. Anyway, in my limited experience, the larger are for black water.
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