I have a buddy who is a plumber. He has described some of the jobs he has done, yuck! But when you need one, thankfully there are people who do the job.
When I hired into the mill as an Electronics Tech/Instrumentation Tech.. I walked in to the shop, with dirty clothes.
I was in the coal/coke part of the mill, VERY dirty.
Anyway, senior tech told me, if you wanna wear clothes like that, we'll transfer you to the Motor Inspectors (Electricians).
Go to the Washhouse, and put on a new set of Greens (the outfit we wore... they were green)