"Eric" wrote in message
...
Harry

I had this problem last year. It sounds exactly like my garden and pond!

Keeping herons out of a pond is one problem but how the blazes do you keep
out grass snakes, I would like to know?

What's your problem? Every Tom, Dick and Harry keeps fish. Very few are
lucky enough to have a beautiful snake to keep. What about stocking your
pool with cheap fish rather than fashionably dear ones? I am sure the snake
won't mind. In due course you might be rewarded with a colony of snakes.

[snip]

[Franz Heymann]