We bought this on August 2 of 2015 for my granddaughter 3rd birthday gift. We set it up and she had a few hours of jumping. We then packed it away easily and brought it out this week, once again for a few hours. We had two children in at a time and I estimate that we had no more then 85 pounds jumping at any given time. As I moved to one corner I heard the hissing of a leak. The threads are unraveling on one of the corner columns. It is so disappointing for the kids and us as well. Lots of squeals and laughter. I don't see a recall. The thread must not have been tied off tightly.