..." I followed 2 inch line frrom holding tank to anchor locker - could this be it ?..."
--well you are looking for a silver colored screwout deck plate . it should be marked 'waste,' and looks similar to the FUEL or WATER inlets on the side decks. maybe the original owner retrofitted a holding tank and put the waste fitting in the anchor locker to keep gasdock people from filling the WASTE fitting with fuel. (that's a clever thing to do...but that placement would certainly smell up the v berth area if your old hoses start to stink.) if you unscrew the cap on this anchor-locker fitting you should be able to smell very quickly if that's the 'waste outlet' ...
I have other questions about plumbing. a direct call to me would be much apreciated as I hate computor comunication- 707-206 8302
larry.conover@sbcglobal.net[/QUOTE]
i am on the east coast so calling you at this hour in ?california probably won't be much appreciated... if you go onto the catalina owners group you may find easy answers to any other plumbing questions...if not , post specific questions to 'ask all sailors'...
fair winds