Do you know if it’s a hard water area? It may just be calcium.

When you say “funky”, was it a little furry and white? If so, that’s probably calcium deposits (aka “limescale”).

Is it a dusty room?

This is so cool! Well done :)

I too would be very interested in what they have to say, but assuming they’re not Spez, they are just another person working a job there.