The cottage has electricity but no 'indoor plumbing'. [=the cottage does not have a toilet or sink; there are no pipes that supply clean water to the cottage]
a store that sells 'plumbing fixtures' [=sinks, toilets, faucets, etc.]
a scientist who spent her life 'plumbing' the minds of criminals
(..) Let's move briskly. There's not much time. All right, rehearsing now! Gotta move our ass. Ain't got much time. I been fixing the plumbing here for years. Ain't never had to wear no damn tie before. Well, you're the VIP today, Earl, so just shut up. (..)1999 The Green Mile