If your dog loves the water it can be a lot of fun to get them a pool so they can keep cool during hot weather.
I used a small plastic kid pool when I had Terra. She loved it. Well to be more specific she loved water in general so it was a hit. One thing that she always did was dig at the bottom of the pool. Because of the digging I was really glad that I had one of the hard walled pools otherwise she would have dug a hole in the pool.
One thing to keep in mind when picking out a pool is the size of the pool and the size of your dog. The pool I had was a bit too small for Terra but I choose that size because I knew that once it was full of water when I wanted to clean the pool it would be really difficult to dump the water out of the pool.
Another thing I noticed is that since I didn’t move where the pool was located it killed the grass where the pool was. So if you care about your lawn make sure to move your pool around frequently.