This also seems to be an overreaction. So far all we know is that there was a loose fitting causing a drip in the water system, and that a severe rainstorm caused some leakage... we don't know why. Maybe there is a seal that needs adjusting/replacing. Maybe the OP didn't put it together correctly. Maybe the rain was so violent that nobody would expect it to be 100% dry. To condemn the entire RV market over these sketchy details seems a bit harsh. In any case I'm pretty sure the dealer can correct the issues without any major fuss. The OP seems to be gung-ho on smearing the dealer's name before they even are given a chance.