I had 1/2" mesh at the bottom of my duck house, but the turds were not dropping through as I had planned. To fix the issue, I just pulled the mesh out and let the duck house sit on the grass. I put a couple wheels on one end of the duck house and move it like a heavy wheelbarrow about once a week so a new patch of grass gets fertilized. The 5' round by 1 foot deep kiddie pool gets changed over every few days with the two Cayugas I have now, but 20+ ducklings arrive this week, so that is going to change. Ducks don't need water every day, so I may just sit the pool out on the weekends. I plan on building a pond on the property in the near future, but until then it may just be a kiddie pool on weekends and a few sprinklers during the week. The ducks seem to make the most of the little mud puddles in the grass when I empty the pool.