Ключевые слова: background, bill, black, closeup, construction, consumption, detail, device, dirty, ecology, economy, elbows, equipment, flow, fresh, gauge, home, industry, installed, liquid, measure, measurement, measures, metal, meter, meters, number, numeral, object, old, pipe, pipes, plumbing, pressure, red, scale, seal, sealed, supply, technology, tubes, valve, wall, waste, water, white,