Trying to repair a leak, it looks as if it may be a seal, I have removed the spray arm, but I don’t see the seal or anything:confused:
Here are the parts
Note the below is for ADU3000DWW re:does not include the 72
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=19365&diagram_id=663036#d663036
You have to find the leak location.
A small mirror and a flashlight can help here.
A mirror attached to an arm like the ones mechanics use is best.
Try to locate the high point where the leak originates.
A common leak location is the flapper arm to solenoid seal, Item 14 in Section 3