This is the reason that you should never buy a trailer made of tube material..never. They rust out from the inside, because they can not dry out.
Trailer made from c-channel do not have this problem. I have seen this a number of times.
It happened to me on lake oconee about 5 years ago. Lucky that i had a couple of c clamps and a short 2x4 to put it together. Made it 53 ,miles up the road to home. I feel bad for the owner of that trailer.... i learned from that lesson and modified a channel iron trailer which my jon rests on now.
John 3:16Slabprowler LIKED above post