It wasnt level when I set it up, so I shimmed to top and put plywood over the shims. It is weird. I would think 5000 lbs would be a self leveler. Already thinking about my next build even though that is way off.Well that sucks it happened again. Gotta be something unlevel like you said, but your main tank above it is all level isn't it? You'd think if the floor was unlevel enough to do that to the sump then it would show in the main tank too but you main tank is fine isn't it? Seems weird.










