Ключевые слова: aged, background, black, closing, concept, conduit, connector, consumption, control, corroded, corrosion, dark, detail, dirty, distribution, drain, dross, equipment, faucet, fitting, fluid, grunge, hydrant, infrared, iron, isolated, joint, metal, old, open, pipe, pipeline, piping, plumb, plumbing, radiator, rust, rusted, rusty, sanitary, steel, stopcock, supply, tow, transmission, tube, tubing, valve, water,