I am very new to boating and just got my first boat last year. It is an old fiberglass Lin Craft that is over 40 years old. When I got it last spring that had a couple of holes about one inch from the bottom of the boat on the transom that water would come out of. Looks like maybe where the depth finder was. The transom seems very solid, even a couple times when I let the motor down very hard it just bounces a small bit but it doesn't seem to have any flex. Also I put some waterproof epoxy around the drain hole because it seemed open to the elements.
Is there a way for me to know for sure without spending big money?
Is there a way for me to know for sure without spending big money?