Quote Originally Posted by Waterlogged View Post
BAH! I'm not sure what to think about this anymore. The whole thing looks poorly designed in that area to me. It could have been done by the Fester fittings, or the pliers, or the WC gremlins that run around randomly wrecking everyones builds. I simply don't know anymore.
Those two marks on the tank are in line with the knurling for the fitting, if they were made by the fitting it would be one continuous mark. Sorry for the OP but it looks to me like he screwed up the radiator with a tool, most likely needle-nose pliers from looking at the pics. If you look at the marks you can see that they are heavily gouged by something in two very distinct places inconsistent with what the knurling would cause.

There is nothing wrong with the design, sorry OP it sucks for you but if you actually get an rma you should be singing praises for whoever gives it to you!