That is not true what so ever. I hate hearing that BS. It rains like a son of a gun on the coast here, if that was the case all sunroofs on f150's would of been recalled by now. He is just plain lying to you! Ask that moron: Point in my owners manual where it states not to take my Raptor outside when it is raining!!! Can you imagine how this sounds now! Hope your other issues are fixed easily. Obviously one of the drain tubes is not attached properly or there is another issue. And fyi, if your sink overflows because the water coming out of the faucet is filling the bowl of the sink faster than its draining, you have a problem with your drain, period!! I wish I had the money to just fly down to dealerships and call them out on all of their BS when I hear these stories! Now, please don't take this as an attack on you, I'm venting because dealers get away with this because the techs are too bloody lazy. Did they remove your headliner, etc, do they have a video showing the water overflowing over the sides of the moonroof while all 4 drains are pouring water on the floor of the shop? I bet not! Okay, I'm done now. What a beautiful sunny day it is outside