Bulge In Water Tank

[Doug & Angela]

Howdy!

I was under my 2015 560 and noticed a bulge in my water tank. The grey tank is usually empty, so no bulge. My fresh water tank is normally full, causing the bulge. Y'all see this as a problem or ever have to replace a water tank?

Thanks!
Doug

 

[Ken & Peggy]

Howdy!

I was under my 2015 560 and noticed a bulge in my water tank. The grey tank is usually empty, so no bulge. My fresh water tank is normally full, causing the bulge. Y'all see this as a problem or ever have to replace a water tank?

Thanks!
Doug

I've never paid attention to this on ours. It almost looks like it's meant to be there to facilitate draining? Don't know...