Ive been told $20 to $40 per truck. Does this sound right? Also, When a customer wants a trailer washed. How much do they expect you to do? Surely they dont really expect you to lay down on a creeper and wash the bottom of the trailer, the axles, the back of the wheel, etc. I would guess just what is visible. Correct? The front, the back, both sides, and the wheels. Am i correct? What kind of sprayer would i use to apply chemical. Just a hand held pump up sprayer? Spray it on, rub it down with a brush and then rinse it off? Use heat or no heat? What about water spots. Water around here tends to leave spots when it dries. On a white trailer it probably wouldnt be noticeable but on my personal vehicle (black suburban) that i use to pull the trailer, water spots are very noticeable. What do you do about that? I have many questions on different types of jobs but this is a good start. Thanks guys!