nope, no issues with reactor flow. The main drain flow is solid. The only issue I had is with pump noise from Varios. I have two reactors on the “dead end” side of the manifold. After I went through 2 pump replacements, they told me its probably due to back pressure building up from those two reactors. eventually, after a few months, the pump humming noise miraculously disappeared. In your case, you only have 1 reactor on the dead end side and two downstream, so shouldnt be a problem at all.
Super helpful thank you! I'm also using 1" plumbing (I think you went with 3/4" for space?) so hopefully that keeps the flow up. I really appreciate your insight.
Side rant: I had shared a photo of my sump in progress with the Facebook Redsea group and basically got criticized (with minimal constructive feedback) for all the plumbing elbows. It's not like any of us redoing the plumbing enjoy having to use a ton of 90 degree elbows but the metric conversion and small sump don't really leave much choice. It's poor interactions like that on FB that make me appreciate the community here on R2R even more.