Could it be that what we in the UK would call a viv might not be what you guys would. They are all fake / silk plants with cork bark.
While were one the subject .... Royal Python is a much better name than Ball !! Hahahahahaha
All of my snakes have a similar setup and they all get cleaned / disinfected every 3-4 weeks. I usually change a few things around at the same time, which gives them some variety.