I have a chance to bid on washing the truck fleet at our City-owned electric utility. The job consists of washing 12 pickups and 31 larger trucks, (pole setting trucks, 2 ton trucks, and other tandem axle- type trucks), on a weekly basis. I need to know what type of washing equip. would be needed for this job. Do I need a hot water type rig, or would cold water- high pressure be good enough? What pressure and GPM is best? How much water tank capacity would be advised? I am thinking of using some type of trailer mounted rig. Also, how is this work commonly priced? The bid asks for a price/truck. What is the normal price per truck, and how much time/ truck should be planned for? I already do a lot of mowing for the Electric Dept. and have some good contacts there. This looks like a good service I might be able to add to my lawn maint. business. Any help will be appreciated.