I taught mine to swim in a paint roller pan. That was their first intro to FREE WATER. Next, I moved up into a plastic construction concrete mixing pan. They grow so fast, but are uncomfortable with too much water. I would think that a kiddie swimming pool would be just great - something you...
As a "veteran" of 90 days duck raising, I can only contribute what I have learned. I started with 4 babies - that is the problem. When they have each other, they don't "need" the human for company or interaction. They have their brothers or sisters for comfort. I have done everything to get them...