UPDATE III:
Well when testing my gray tank to make sure the gauge is actually working, I discover that the tank that I thought was 80 gallons as advertised by GS is actually only 40 gallons...
This is a big issue for me since we do a lot of remote camping and one of the main reasons for picking this camper was the large gray water capacity...
I guess I will be in contact with GS again to see what we can do to remedy this big discrepancy...
