a four-inch suction pipe inserted into a home septic tank, suction of household wastewater.

fourinch suction pipe inserted home septic tank household wastewater sewage drain pumping open hatch pvc hose quick coupler inches connector cesspit cesspool sanitation tube vacuum stench pump sewer flexible sewerage long manure trucking shit lorry storage barrel suck liquids cistern pipeline truck cleaner sludge tanker feces outdoor hygiene service waste maintenance drainage sanitary house