I concur with what was said above.
Depending on where you moor your boat, there can be all manners of red tape regarding overboard discharge, and having a system that is entirely self-contained and not capable of overboard discharge can sometimes ease the process of needing special lockout tags, etc.
Unless you're making long offshore trips, overboard discharge isn't even a legal option, and one might as well not even bother with having it. Old hose can stink, if it is original to the boat it is well past its prime, and it is unnecessary weight in the bow. A previous owner of #337 ran new hose directly from the head to the holding tank. This resulted in plenty of original hose that wasn't connected on both ends and/or wasn't doing anything. So I tore out all the unnecessary old hose connecting the Y valve, vented loop, and thru hull. (I think the vented loop and Y valve themselves have to stay to comply with OD, though, so I left the hardware in place, even though none of the fittings are connected.)
Ryan Pierce
Tesara, #337
