Ключевые слова: bathroom, building, cesspool, cleaning, cleansing, closeup, concrete rings, connection, construction, drain, drainage, equipment, faucet, home, house, industrial, industry, install, installation, pipe, pipeline, plastic, plumber, plumbing, pvc, repair, sanitary, set, sewer, sewerage, steel, structure, supply, system, tap, technology, toilet, tool, tube, valve, waste system, water, white,