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
(..) Where's Franck. Pump up the press. What worries me about this thing of yours... The CPE. It's like plumbing. Believe me, no one will understand. If it creates jobs in the next three months, that's great. If not, you lose on both fronts. (..)2016 Me Before You