And that is why it would take a pretty major restoration to add a grey water tank. The present system works pretty good and my only complaint is the frequency at which I must change out the waste lines. Even with excessive flush times, the lines get pretty bad. At least I now have access ports to get to the bad areas.

Question -- With all the movement and flexing the boat does, should I try to do a hard plumbing job or am I beating my head against the bulkhead?