We have two pressure washers, a high pressure one for parts/engine cleaning and a lower pressure (2500#) one for paint booth wash down. The road people have our water cut off a lot so we put two large saddle tanks from an over the road semi tractor in the bed of a 10 yard dump truck and filled one with warm soapy water and the other with rinse water. A 45psi air line was run to the top of the tanks and an outlet on the bottom to the pressure washer. Worked well with no pump damage which may be a result of the clean water rinse. The dump truck was for shrapnel protection since we didn't know if the aluminum tanks could take the air pressure. Warm soapy water definitely cleans better.
Jerry, I'd bet the steam/hot water machine was a "Hotsy" There were everywhere with most being done in by freezing weather and coil left undrained.
