We did not use the pool much, maybe once every week or two. Adults only. These pools have vertical seams, one simply gave up and once it started to split you would not want to be downstream. It was well leveled, this is critical. There are much more durable alternatives out there, we have our fish in a 1000 gallon show tank from Pearls of Paradise. This is made from heavy duty truck tarp material and you can get a real fish net type cover. They make then even bigger, and they pack well too. In comparison, there is not much vinyl between the fish and the cold cruel world with a cheap air-ring pool. Not enough for my taste, anyway! Also, the show tank uses PVC pipe and tubing for support, the air ring job relies on the vinyl itself.
BTW there was an early indicator of the failure, one side of the air ring (directly over the bad seam) started to dip a week before the blowout.
I don't mean to cost Henry any sleep, but he should keep his contractor on schedule! These things tend to drag on and on...
Tom