I did the pneumatic rubber tire upgrade to mine many years ago and certainly agree that using it is much easier and quicker than driving the whole rig to the dump station. It is a two wheel Barker model (22 gal I think) and those wide tires make it a LOT easier to pull from the trailers dump outlet to the back of the truck to hook on. Ours (and our Honda generator) gets used a lot if/when we get stuck in the dry camping area (open field)or partial hookup area (elec and water) for a while where we spend the winter until a full hookup spot opens up.
Barney