OK I picked this unit up over the weekend. I just wanted the trailer and the large tank but ended up with everything else. The history is that this older couple bought this rig for their son to start a fleet washing business in Oregon and he used it for a year and gave up. He moved on to the corporate world and they have been lugging this thing around for years and even had it moved here to Florida because the hubby was considering getting something started. Well last year they had it serviced, and checked out...the hubby got a different job and the thing sat for another year so now it wont start due to gummed carb and stale gas. So I wanted the trailer and tank---popped the cover on the pump box and saw the 10 GPM pump and said wow to myself--these suckers are expensive. So I offered $500, they took it and now its in my driveway. I cant even figure out all the plumbing and water softening and valves and lines and....anyway, thought Iwould share and will update my progress on getting it running. Wont take much.