[rtcassel]

Originally Posted by Bill

In the case of the gray water, I seem to recall that there are traps upstream from the holding tank. In other words, there is a water trap under the kitchen sink, and one under the bathroom sink. I just don't know about the tub, and I can't see up there. But since the sinks have water traps, it makes sense that the tub has one as well - otherwise there would be no point in installing the others.

On my TM, it looks like the water trap for the tub is inside the black box (with a circular screen) that hangs from the bottom of the TM below the tub. There are water lines and at least one wire that run through this box also. I think that there is a channel (through the styrofoam) from this box to the bathroom exhaust fan.