My kids left out one of my Lucky dog plastic bumpers last night and my pup polled the air stop valve out. Needless to sat I have no idea where the valve is now. Is there a way to replace the valve? I have been looking online for Luck Dogs home page to see if I could get an extra air stop valve but have been unsuccessful so far. Any thoughts or suggestions that I could do to fix the bumper? If not I guess I could always use it on dry land or file the valve with glue to make it air tight again.