PLUMBING
Source: 567
Plumb″ing (?), n. 1. 1. The art of casting and working in lead, and applying it to building purposes; especially, the business of furnishing, fitting, and repairing pipes for conducting water, sewage, etc. Gwilt.
2. 2. The lead or iron pipes, and other apparatus, used in conveying water, sewage, etc., in a building.