Andrew asked:
"A friend is debating between a koi pond and a small swimming pool. Made me wonder, does anyone swim/wade/soak in their koi pond?"

I'll take a dip in the old pond from time to time, au natural, so I don't bring in any soap residue or anything from my clothes or add any algae to my wash. You almost can't avoid it when working with lilies and the pump in my particular setup. The fish don't seem to mind, and before the jokes fly, don't worry, they leave the large fuzzy worm alone. ;-)

Malithorne