Ключевые слова: bio, clean, compartment, construction, damage, diagram, domestic, drain, drainage, environment, equipment, external, filter, filtration, graphic, house, icon, illustration, infographic, infographics, installation, isolated, outdoor, outline, pipe, pipes, plastic, plumbing, pollution, sanitation, scheme, scum, septic, septic tank, service, sewage, sewer, sewerage, sludge, storage, system, tank, toilet, treat, treatment, underground, waste, wastewater, water,