Assertion: septic tank's level | /r/AtLocation | bottom of the outlet pipe
Facets:
Source sentences:
text: If the liquid level is at bottom of the outlet pipe, then one would assume the absorption area is accepting the household wastewater.
text: Depending on the thickness of the floating scum layer, the effluent level will be either exactly at the bottom of the outlet pipe, or it may be pushed down by the floating scum layer to be ever slightly below that point.