Quote:
Originally Posted by timp410
Wow Jamie, thank you for this info, this explains an encounter I experience on a camping trip last year. My wife was using the bathroom sink and the water would not drain. I notice the black water tank was full but I did not under stand why the sing would not drain. We had not connected to the sewer hose because we were going to change to a better site by the ocean in two days. Once I drain the black tank, the sink drained as well. Your diagram confirms my suspicions. I do not understand why a sink would be plumed to the black tank, this make know sense to me.
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In a way it does make some sense. The two items having the least water consumption are plumbed into one tank thereby giving you additional capacity in the second for shower and kitchen sink.
The problem is that they didn't tell you about the plumbing situation.
In my coach the logic for the plumbing appears to be everything on the passengers side (shower OD kitchen, washer hookup) in one gray tank, the kitchen sink and lavatory sink in the second gray tank, and the toilet alone in the black tank. This was confirmed when I got the drainage diagrams for the 37ND from Thor last week.