On my tri hull that I am replacing the transom and deck on--the bilge drain hole is located in the middle V of the bottom of boat out the rear.There is also(like all tri-hulls,I guess)two other V's one on either side.That's three total.Question is how would you channel water,if any gets in,to the center V where the drain is.Anybody ever come up with this one??I can post a pic.if needed.thax