plm conference.
Met with Nels Moore. The 4" drain only extends half way down the building and doesn't have grade to make it to the proposed rr's. There is an existing duplex ejector 150 feet (approx) upstream. The best solution would be to add a second duplex ejector for the proposed rr's and tie into the existing 4" overhead drain. The 4" overhead drains by gravity to the underground horizontal.