"Take it up with the tire manufacturer?" You mean the manufacturer of the crap tires you (Dutchmen) put on the trailer because you're too greedy to put good tires on. The manufacturer over in China, you mean!
I can't believe how mad these idiots can make me. Good riddance! Never, ever again! Anybody reading these threads and considering a new unit... demand high end tires on your pre-delivery inspection (you've already paid for them at the cost of these things!)or plan on spending thousands more yourself in new tires or damage after they blow.