Ключевые слова: autumn, building, building level, cesspool, cleaning, construction, cover, drainage, ecological, environmental, fecal, filter, fix, glove, hand, hatch, hole, home, house, industry, install, installation, man, manhole, outdoor, outdoors, plumbing, purification, reservoir, sanitary, sanitation, septic, septic tank, sewage, sewer, storage, system, tank, underground, waste, water, worker,