Category:Architecture and Structures
Subcategory:Home and Surroundings
Subcategory Detail:
Keywords:Septic system, septic tank, septic, waste, water, onsite sewage facility, OSSF, sewage, drainfield, leachfield, anaerobic, bacterial, bacteria, biofilters, wastewater, feces, sewer, underground, sanitation, pipes, plumbing, toilet, flush, geologic, cross-section, excavation, house, yard, home, drain, plumber, schematic
