Nozzles are calibrated in levels, plus the reduced the variety, the narrower and much more powerful the stream. I experimented with a variety of nozzles and settled on 3: For dousing the concrete with detergent, a 65-degree labored well. Pressure washers are moveable and will run on either electrical energy https://knoxxxwur.dgbloggers.com/17039073/about-pressure-washing-mobile-al