I thought you might appreciate a few pictures of the pond. I am not very good with a camera and these pictures were not taken specifically to show the pond.
Thanks for the comments. Unfortunately, the pictures don't really show the set up, half the pond is below ground and half is above. I'll try and take some decent ones (but only once the water is sorted out so that Peter can't shout at me!) Luckily, OH is a landscaper.
PS That's Primrose and Gertrude in the photo - taken by the Daily Mail for an article on keeping poultry in your back garden.