I'm having trouble setting up my Neptune DOS AWC pump. I follow the set-up instruction on APEX-FUSION Task- "DOS automatic water change" without a snag. But within 2 hrs. I notice the water level rising in my sump. Investigating I saw that one pump was pumping a little more volume according to the DOS on my dashboard, so I recalibrated the 2 pumps. Started up again and then watched as pump 2 (the water removing from the tank) was running backward and pulling back in the waste water. So for now I have it off and seek a solution.