Im currently looking at a 18ft. 1989 wellcraft sport, upon inspecting the bottom I noticed a small round hole in the bottom of the boat about 2ft forward of the transom.Because the boat was block very low to the ground I couldnt tell if it a thru-hull drain.If you are familiar with this boat, could you enlighten me to its function.It does have a drain on the transom.Thankyou Andy
