I have a 1964 avalon glaspar boat, 15.9 feet. I need to know how many drain plugs are needed. I see 3 holes on the back of the boat, but I've only put 2 plugs in, don't know where the 3rd whole goes to. When we pul the boat out of the water, all kinds of water pours out, so it must of ben water in the hull, we can't figure it out. we would appreciate any help we can get about this problem.
thanks wendy
thanks wendy