Welcome to our forum.
It's undoubtedly true that top manufacturers sell thousands of tubs. Â But how many of those people come to this forum? Â I would argue that only a small portion actually participate (look at the user stats). Â However, it seems that more than just a few of these individuals DO have problems. Â Kinda makes you wonder about how many problems the people who are NOT participating have? Â Hmmm, the term "representative sample" comes to mind....
 How can a spa leak or have other problems right out of the gate?  Lots of possibilities.  People make the spas and people aren't perfect.  Loaded on a truck with a forklift, driven over rough interstates and off loaded with a forklift.  Stored and then loaded on a trailer and driven to the customers home.