Ever try to hose out the back of a van after you've carried a 1/2 ton of manure in it? Or, say, a carcass or two from a feedlot? In the US, a sizeable % of pic

Ever try to hose out the back of a van after you've carried a 1/2 ton of manure in it? Or, say, a carcass or two from a feedlot? In the US, a sizeable % of pickups are equipped w/ dump &&|| stake beds for precisely this type of work.