Ejector Pits - A spherical, square or rectangular pit (assortment vessel) which can be made out of cast iron, metal, PVC, fiberglass, concrete or clay tile.  They are used in programs where the sanitary waste that flows into them is reduced that the main sewer and by mean of the https://docs.google.com/spreadsheets/d/1TQwcF9GUPHB4W04RjOXPhJQspTRw71rM6To5leWnddQ