Forget the “shower cap” you can buy from Wiggly Wigglers, it is hard to put on and it doesn’t stay on for long, and it doesn’t seem to keep any water out!   Instead, I was at Woods Mill and noticed that they had put a dustbin lid on their Can-o-Worm.  Why didn’t I think of that?  A quick WANTED on Freecycle and I now have the lid on top of the Can-o-Worms.   Now… we need rain.