25-06-2021, 07:11 PM
(25-06-2021, 04:41 PM)Duncan Grimmond Wrote: I'd be tempted to cut a valve out of an old inner tube or even from a "whoopee cushion" and glue it in with a rubber cement from a cycle repair outfit, or perhaps "Copydex" if it's still available.
You won't make it any worse...
I'll give it a go. As you say, it won't make it any worse. And it might make it better.