So I was browsing on Pinterest and I came across this post. I bought this water at tractor supply and I have a rubber tub like this already. Yay!
Link below...
http://frankiemakes.blogspot.com/2012/06/watering-solution-for-ducks.html?m=1
Link below...
http://frankiemakes.blogspot.com/2012/06/watering-solution-for-ducks.html?m=1