Leak in Shower From Poor Seal? 2012 20' FC

[mrpettit]

I was winterizing my 20' 2012 FC and was emptying the water tank by running the shower so all the water would go into the grey water tank. The shower wand was on the hook and aimed at the side of the shower uptop above the seat in the shower.

I happened to go outside while doing this and saw water leaking from underneath the AS near the valve for the black/grey water dump. Picture attached

All I could figure was this had to be coming from the shower. I went back into the AS and put the shower wand on the floor of the shower so the water from did not hit the side of the shower above the seat. It hit right near the drain. The leak stopped immediately.

So I assume I need to just go re caulk the upper part of the shower that there must be a bad seal somewhere? Any other ideas?

Thanks.