The valves in your inflatable raft, cataraft, kayak, SUP board, body board or pool toy is a critical part of its performance and longevity. If a valve fails for any reason it needs to be replaced.  Here we show you how to replace a raft valve, using a doughnut patch to cover the incisions you make to remove the valve’s inner piece. This repair procedure works on an inflatable made of Hypalon, PVC, urethane or any other boat material.