This is how it is plumbed. I need 3" of water in the sump, or air is sucked up..
Long story. I got my basement reinforced early as I was on shut down. So I can start expanding the sump into the basement. Mostly the noisy stuff.
I also want to gain my 6" I gave up. When I raised the sump 6". So the algae scrubber had more air gap.
This is all semi temporary, as I want to replace the old sump with a 90 gallon tall. That will be drilled with a durso. Then into the basement, sump project.
modified continuous drip, water change out drums. On closed loops.