I just read most of this thread, and didn’t see mention of one possible design consideration that might explain the reason for the two tanks. (By the way, this is all theory since I don’t take delivery of my 3400 until the 23rd of July.) With the tub/shower and sink being in the front (on everything except the FL models) those drains are higher than the kitchen sink. If you filled the grey tank until the tub had standing water, AND there was only one gray tank, OR the two (gray and galley) were connected, the tub would drain into the galley tank until it was full. Then, the overflow would be into the kitchen sink – if you were lucky; and into the living area if you weren’t lucky. Having two separate tanks prevents this. This may also explain the different plumbing schemes. Since I still don’t have mine to look at, I can’t verify this thought. Anybody else?
Gordon
|