The real truth of the matter is me and most all will take pics when we just cleaned the pools or ponds.Cause everyone likes a preety pic.In reality the pools or ponds are dirty in about 3 days.They are messy ducks for crying out loud. I dont mind the actual dirt mind you but they pee and poop in there as well. They have to drink that same water so I dont dare want too much waste being consumed so I pump out the kiddie pools at the very longest 6 days.Most time 4. 2 weeks is the longest for my pond. Just depends how many ducks you have and what the bio-load is. I spend alot of my time cleaning the pen and their water. But I do have alot of quackers.
my big ducks can dirty their pools within 5 minutes.. completely nasty within 24 to 48 hours... giant pekins can be pretty nasty birds for being so white!