Hi, The stores in Arizona sell only steel wall pools. Such as the well coated one by Doughboy. The aluminum ones I have seen in the past last just a few years. I don't know if that's an Arizona thing or if that happens everywhere. That's where the local dealers should be of help. I do know of many Doughboy brand pools that I service in my area that are well over 20 years old.

Good luck, Dennis