I have the Neptune ATK setup in standalone mode on a 20 gallon waterbox AIO. All of the cords are plugged in and the system is pumping water up from my ATO reservoir which is less than 4’ below the tank. It only pumps about 3 seconds/ hr. So my problem is the water level in the skimmer section of my tank where the magnetic sensor mount is setup is much lower than the sensors and float valve. It is not going into an alarm state, but it is not filling back up to the lower sensor. I’m not sure what’s going on. I already submitted customer service ticket and spoke with someone. Nothing they suggested has helped. I don’t know what can be done to get my pump to pump more volume during its one hourly fill. Any help?