Yeah, not sure on it. If it keeps it up I may open it up and have a look inside. It sends the vibration through the tubing and the PVC
, so it's not so small.
My headheight with the replumbing is now around 8 - 12". All of the bends, valves, unions etc remained in place, but the tubing is much shorter now. A very rough test and calculation says that I'm still under 600gph. With a 950gph pump, this makes absolutely no sense to me. I would've expected it above 800 with the plumbing, but not below that.