Hi David,
It is great to come across other self-build adventurers from the UK.
I have a couple of quick questions for you:
1) How much maintenance do your ponds need in order to maintain the water quality and keep the ecology of the pond healthy? In particular I have a garden pond which suffers from duckweed - is this a problem with your natural pools?
2) I wonder whether the temperature of the water reaches a level that could be comfortable for swimming in the UK, bearing in mind the recent poor summers that we have had here in the UK. How often are you able to use your pools?
Thanks for opening up a whole new area of possibilities for me.
Graham
