This is a general question. I have two heads. The waste lines go to a Y valve which directs the waste either
overboard or to a
holding tank. The
holding tank has an access point topside for
pump outs or a seacock down below to dump
overboard. My question is - Why? It seems that if the holding tank dumps to the sea then the waste line should go directly to the tank from the
toilet. This would eliminate 4 connection points (potential leaks) and about 10' extra of waste hose (which would contain waste products).
I would propose to go directly to the tank from the
toilet. What problem will I have? Am I missing something?
Also, the seacock from the bottom of the tank is close to the
thru hull. This means that there is always waste in the hose. Why not have the seacock at the bottom of the tank?
Feedback is greatly appreciated.