Depends. SOME breeds perform the deed whilst swimming.
Many ducks don't need a pool or a pond at all, for ANY reason other than to dabble in because they're ducks. Just a little dishpan of water to play in will suffice for play purposes.
So, guess it depends on which ducks you're considering.
So I guess I need to keep breeds separate if I want pure breeds. I thought about housing 2 pairs together and only letting out one pair at a time for pool time. But I guess that won't work. Thanks for your replies. Ducks can be so funny!
duckie would wait till i got home and turned on the light to do his deed. then he'd walk around the bedroom with his doodle out and hissing. he was prolly saying "i am THE man" LOL