A offset is not unusual,my Tioga has one and a rigid wand won't work.
This One will work.
But I got tired of dragging the hose in and all the mess that it made
So I installed a
Quickie Flush in my Class C and it was one of the best Mods I have done, and pretty simple.
I picked the Quickie Flush over the Tornado because of the high failure rate of the swivel part. A few of my friends had them fail and it leaves it useless in the tank. Freezing around here is not a problem just a poor design.
The only thing that I changed is where the hose connects up with the flusher I put a
90 Degree Elbow in it to reduce the strain on the hose and make it closer to the tank.
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It looks like this when finished, with a quick disconnect on the end.
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Don't get discouraged if it leaks at the hose connections at first they are sometimes hard to get tight. Tightened mine up and have had no leaks anywhere.
Another suggestion is to make a test hole in a piece of wood or something and test fit the device to the hole. I found that the hole size suggested was much larger than needed.
Good Luck.
BTW
Welcome to the Former Rental Club