target, k-mart might have some. If you have an Academy Sports near you I bet they will have them too. Ducks have sharp nails and will destroy any inflatable.That's where I got the inflatable pool. Our local store didn't have any hard plastic ones. What kind of Walmart does that!? They seriously had about 30 different varieties of inflatable ones though, it was a bit brain racking .
I'll be on the other side of town today and go hit a different location. See what I can find.
I started with the bigger size but it became too hard to empty and clean. My husband even put in a ball valve drain in it but it took forever to drain and got clogged etc. You can see the hole in it. Now it's a brooder. It was gross so I went to the smaller one.