I just bought a 2001 Newmar Mountain Aire 3763 on the Spartan chassis. It's in good shape, a few small things to do here and there, including this hole in the shower insert. I'm not too
worried about moisture getting behind the insert, because it's all the way at the top, but I would like to fix it.
I'm new to RVs and have never made a repair of this nature - what's the best way to fix this? Picture attached - thanks in advance.