My morning walk round the garden revealed that the pond pump had stopped overnight.
The filters were due for a clean, so I did that. It still didn't work.
I checked all the electrics, and they were fine. I could hear the pump working, but no water came out of the fountain.
I disassembled it, and couldn't see any problem. Then I took the black plastic cover off the UV lamp.
Inside the cover was a small newt, feebly waving its legs. I moved it to another "pond" (just an old raised bed with pond liner inside it) where lots of newts live.
Reassembled the pump, turned it on, and it worked perfectly.
They were showing the Ultegra Stages power meter in stock and happily took my money on the 5th of April. I haven't heard from them since despite emails, phone calls, facebook messages etc... The crank isn't marked as dispatched but I can't get through to anyone to cancel my order and buy it elsewhere. So annoying. If they are having problems due to Covid I could understand it, but they've got big notices up everywhere saying mail orders aren't affected, business as usual - and they even had the audacity to comment on a positive trust pilot review this afternoon, despite dozens of unhappy customers having heard nothing from them 
