Restoring tubes Avon 5.4
I am looking at an 1983 Avon 5.4M tomorrow and hopefully bringing it home. I live in Santa Barbara Ca, and will be using this boat for diving near shore and also taking out the channel islands. The hull, transom, and floor supposedly have no cracks or major issues. The tubes hold air except the rear left chamber which has a leak. Apparently goes soft in 36 hrs. I'm not in need of a pretty boat, but if needed, can old tubes (sat in sun) be reasonably restored? Or is it just recommended to replace tubes... not sure if that is even an option over here (USA). I'm waiting to hear back from our RIB specialist on if they can order and install replacement tubes for this boat.
Very excited about this boat and the possibility of restoring and or changing a few things.