Re: hull bungs for a avon searider
Sorry, not of the current setup.
The perspex on the stern is just held on with Sikaflex (equivalent to 3m 5200) and the bung is held in with the same.
The pressure relief tube is a length of silicone tube for car windscreen washers , glued through a hole down the middle of the bung then run into the boat over the transom.