You don't see the problem in your picture?
What happens when the power fails? The water in the outcurrent tube falls. Air gets into the venturi line, breaking the flow. It might restart upon repower, but it might not. It probably will if the end in the fuge stays submerged, and if it's not too steep a climb.
Another possible problem is that the water in the sump will also pull on the u-tube as the pump draws it, and possibly strongly enough to retard flow into the fuge half. This could result in a fuge that drains out faster than it gets refilled. More u-tubes might fix this.
|