Pond heaters and things

I found out the other day that the "bermuda pond heaters" which have done such stirling work in the last 2 years keeping our pond clear of ice have both failed.  About half the pond was frozen over with only a space under the little bridge and by both the bubble machine outlets free.
If you let the pond freeze there's a chance gasses which occur naturally can kill the fish. We had one freeze over a few years ago and the only casualties were the 34 frogs that had taken cover in it.  Hopefully the replacement machine will arrive this afternoon and be immediately deployed!
After the upset of yesterday with poor Tesco i had to get out and have a walk so i took myself off to Ladybower Reservoir.  Its a nice peaceful place and in contrast to the grey weather in our valley it was sunny and clear over there.
Here's a couple of the pics i took.