@huskerduck,
Thanks! The sewer pipe approach sounds promising. I'm not sure I understand how to construct the tie-in. Can you post a picture of how that goes together?
Gus
If you can get a cheap 45 do that but I'm really cheap so I would make my own by first trying to heat bend a 45 using a torpedo heater, if it wasn't do-able I would just miter cut the pipe and do the ole primer, glue sand rub, use some zinc strapping with self tapper screws once I got the fit good using a grinder with a sandpaper pad.
Before I made the concrete outer "shell" I would wrap the 45 with a scrap of chain link and/or No climb fence scrap ( both I have) then drive a couple rebars into the ground and mix up some concrete and make a shell around my fabricated 45
that or just get a piece if 12" Sonotube and make a concrete fitting after placing my corrugated pipe and prepping my 12" PVC pipe with the Primer/glue/sand trick
