I am sick of dumping out nasty kiddie pools full of nasty, so I looked for Ponds for my backyard and i got these two on Craigslist for $10 total, GREAT DEAL. They don't leak and they keep their shape well. The one the left has 4 top holes for pipes, and hoses, etc. LEFT Pool: The one on the right has no holes on the top shelf like the other one, but instead has a single hole drilled into the side of the bottom of the pool. I don't have a filter, pump, etc. and i don't have a ton of money to spend on one. I'm not sure how i'm going to assemble these together either. I have 2 ducks, and i think they would love these, i just have to get them to work first. ANY help would be great. Esspecially if you have ideas how to position them together THANKS!