I also bought the same tank and was surprised at the size because it sure didn't look that big on the monitor. Yes, it is heavy when full but the air-filled tires make rolling it pretty easy. One time the hitch on the truck was uphill and I just hooked a short rope to the handle and pulled it up the incline, then hooked it to the truck. The comment someone made about it being taller than the drain outlets is true sometimes, depends on the CG.
So far, we haven't been at one of the CG's where the dump station is too far to tow it. If that ever happens, my plan is to put the tank in the back of the truck and fill it with a macerator pump that I'd have a justification to buy then. Then drive to the dump station and drain it with the stinky hose like others have mentioned.
One thing's for sure, the folks with smaller tanks will occasionally ask to borrow yours because the extra trips to the dump station apparently get old.
