Today I got the plumbing stuff for the new system. I got the returns roughed in. I'll make final adjustments and actually glue it tomorrow.
I thought I bought extra Ts and elbows and unions. Turns out... not enough elbows.
This is going to be a weird plumbing job. My return pump might be a bit to big to many gph..... the exit from the pump is 1.5 inches. The returns and loc line are 3/4 inch... so 50% reduction. What I plan to do is T off the return before reducing and put water back into the first sump chamber. I'll control how much with a valve. I run natural systems. Water movement only. No mechanical no skimmer. Lots of rock (in sump).