And this is why my rig is set up with two dedicated pressure washers with reels, an air compressor and an air pump and chem reel. The only 12 volt pump on my rig is used for transferring Chems from one tank to another. I have everything I need on my rig at all times to handle anything from cleaning a roof to cleaning a Hotel. $50.00 driveways with a roof cleaning? Yep! We do them. Its amazing at the end of the year how much those and house washes can change your bottom line.