alright ...i'm not sure of the proper name for this item on my boat so i'm going to describe it and the problem.<br />there are two self bailing drain holes at the rear of my boat( 18'6" c/c palm beach). each has a black flap on the outer section. i know that these are supposed to let water out of my boat when under way, but should water be coming into the boat thru these holes when not under power? well they are and my fishing buddies feet are getting cold and wet!!! he's threatening mutiny.<br />thanks for the advice, this is first experience with this type of boat and functions. 