I have waterbox Reef 70.2 tank setup with the Coral Box DCA 6000 return and I can't get this thing to stay consistent! It'll start up and i'll adjust the power to 40% and the drain flow vale to get the water level and flow straight. Then if I push the feed button to shut everything down for 10 minutes, it won't start back up and run the same. It'll start up at 30% power and the overflow box will not fill back up. I was told that the pump has a soft start feature, but how long is that soft start? I let it go 10 minutes to see if it went back to normal, but it won't. I have to manually put the controller back to 40% power, but the overflow box still won't fill back up to where it was. I have to adjust the drain flow valve again to get the water flow right. Is there something wrong with this thing??