Itchy's Leap claims another survivor!

[Monty]

..... or some little fecker has dropped a handful of Lego down the pipe!

@DeltaT welcome, glad you survived the leap.

@Monty, it could be anything. I caught my eldest trying to post stones down my cans before. I think I made more noise than the bike when I saw him.

I've got a similar problem with a subwoofer and a little blue car. Every time it hits a certain frequency I can hear it vibrating!