Re: seacock location
You don't need a diagram. What you should be doing is opening up every hatch, door, opening and cabinet opening you see and find out what's on the other side. When you do that, you will find all thru hulls, bilge pumps, sump pumps, etc. Find every hose and figure out it's purpose. Get a good handle on all your boats systems....electrical, both 110v and 12v, water system, sanitary system and engine mechanicals.