DIY Caulk: Basement Shower

The downside of living in a time capsule is that the bathroom tile has not been renovated, like ever.
And it is NOT pretty.

BUT, before we can do anything about that, we need to ensure that there is another showering option for when we rip the tile out.

Cue the basement shower room.
It is okay, but again, I think the flooring has been there since the 1970s, but it does have a serviceable shower that is new-ish.