Trash truck compaction mechanisms fascinate me as well-I am awed by their shear unmerciful POWER-I mean they can even destroy themselves if the wrong items are put in their hoppers or charge boxes.I have heard of instances of items impailing the roofs of rear loaders from the power of the tailgate compactor unit.And items being pushed thru the bottoms of their hoppers.You can get an idea of the power of these from the "Videos" on the website "Classic Refuse Trucks"they show videos of various objects being crushed in many kinds of trash trucks.Including some white goods-the one of the Dennis Pheonix trash truck crushing a FL Hotpoint washer was something--poor washer!They crushed it many times--only thing left was a bent motor!Like disposers-trash trucks are kinda interesting-but its easier and cheaper to collect disposers.Did find a compactor at a yard sale once-didn't buy it since I couldn't fit it in the car I had at that time.Still on the lookout.May be fun to have like the disposers.To aviod odors in the compactors-do not throw food in them-throw that into the disposer.Rinse out containers before putting them into the compactor.On another YouTube video they show someone trying to crush a home type compactor with a D4 type cat tractor-the compactor was actually strong enough to support the tractors weight-about 4 tons!