Is anyone having trouble with the tank level gauges reading incorrectly?  Grey, black, or fresh water.  On factory tour the guide made a big point about the new externally mounted tank gauges and how accurate they were. Our 2016 Excursion 35E doesn't support that claim.

I did a test with a gallon jug and checked the monitor with every gallon. For a reported 60 gallon grey tank I hit 1/3 full at 5 gallons, 2/3 full at 18 gallons, and full at 31 gallons. I was then able to put in another 34 gallons (63 total) before I called it quits but I could have put in more. Admittedly the kitchen drain was getting slow after about 52 but I never had anything come up in the shower which is where I expected to see the back flow. Real disconcerting when trying to guess where you are in that last 34 gallons of capacity on a four day camping trip.

Fresh water tank is rated at 77 but I pulled 90 gallons out before it stopped flowing. Goofy part was it registered full until I pulled 41 gallons (49 gallons remaining), 1/3 full at 75 gallons removed (15 remaining), and only had 2 gallons left when it finally registered empty.

I'm suspicious that the sensor placement isn't what it should be. Anyone ever messed with moving them?

We have had problems with our tank gauges as well. The dealer has made adjustments to the float switches to try and correct this problem. The fresh tank used to fill to the top but now it does not. We were told this is normal operation. Doesn't give you a lot of confidence.