New to us - 2015 36RSSB3

[Chuck A]

Never owned a 5th wheel but feel we will be happy with this 36. Love the forums and have a few questions. I would like to replace all four 17.5 aluminum rims that came wiith the unit just because they are pretty rough looking or really rough. Would replace the same or someting more up to date. Anyone have good experience buying rims? Also, the black tank valve will not close all the way. How to get to that? Thanks for any help...