We've experienced contractor error which led to a 36" outlet pipe discharging out of a CRM wall (16' high) with way too steep of a slope. I originally designed a drop inlet structure before the wall (not constructed) which led to adequate exit velocity. The property line is 5' from the outside...
thread161-194365
I'm designing a large residential sewer pump station. Due to development phasing, the initial flows are much lower than final flows. The retension time during initial phases is unavoidably long given pump submergence requirements. Septic conditions is a concern, is a bubbler...