The fill flume air gap is placed on the outside to allow it open to the atmosphere....just in case of a power outtage, it would not allow water in the inner tub area to backflow and contaminate the potable/drinking water......
you can never cut off too much so to speak....any excess will hit the splash shield, and bounce in to the tub.....either way, you have great flow onto the load now.....sometimes I had to use pliers to flip it back on itself....just a thought....
that top seal should seal enough to keep all water inside the unit.....if any small drip comes out.....2 things, either replace the seal, OR, take four small metal washers, remove the outer tub hold down bolts and place underneath, replace the screws, and the top will now fit tightly against the top....no more leaks...
Almond seems to be the popular color all of a sudden....not one of my favorites...