Pleasure. I forgot to say the pump and filter kit I got also has a UV light so kills alot of the bacteria as it goes which also help longevity of the water. I am also trying to work with a company to develop a system specifically designed for duck ponds. Will post on here if I have any success
We have 8 ducks. I made a pond for them really simply, its about 3ft x 6ft and only about 1ft deep. I built it over a couple of soak away boxes a d put a plug in the bottom so emptying it just means pulling the plug, and I have 2 big water butts that collect rain water from the house to fill it...