My tank has always been stable as far as the water level. For some reason over the last week or so I've been having trouble keeping the level stable. I noticed it was low in my display so I added some water to the system. That took care of that issue but now I'm having trouble keeping the level stable in my return chamber. No matter how I dial in my return pump the level seems to never reach a stable equilibrium the first two chambers of my sump are low and the return section is almost to the top of the bathroom. I'm sure this is an easy fix but I haven't been able to figure it out