I guess you gotta decide who's advice you want to take. :lol:

I ran something similar to your design in my last house. I ran a herby and ran 3 x 1.5" lines with flex PVC. I flowed it with a hammerhead pinched way back. My vertical was about 8' and horizontal maybe 10-12 '. I used the flex as it was easier to snake up the finished ceiling/walls. My gate valve for the herby was at the tank (less weight on lines). Seemed to work fine, the drain was pinched back a ways, probably could have gotten away with 1" but I figured why not go larger to guarantee I had enough drain size.

That what worked in my situation.

Again, thanks for all the tips and info!

roblarss, the hammerhead was too much eh? Hmmm maybe I can get away with a barracuda.

I guess it depends how much water flow you want going through your sump. I just happened to have it laying around. My Current setup has a fairly low turnout over turnover to the sump.