En anden vigtig faktor er vandtrykket. Højtryksrensere varierer i vandtryk, som måles i bar. For bilvask rekommenderes det at vælge en model med et tryk mellem 90 og 150 bar. For meget tryk kan skade bilens lak, mens for lidt tryk ikke vil være effektivt til at fjerne indgroet snavs.
One of the most critical determinants of price is the motor type and power output. Electric high-pressure washers, which are quite common for residential use, usually range from 1300 to 3000 PSI (pounds per square inch). Higher PSI ratings correlate with more powerful cleaning capabilities, making them ideal for tough jobs like removing grease or mud. Conversely, gasoline-powered models typically offer even higher pressure ratings, appealing to those who work in more demanding environments. These units, however, tend to come at a higher price point, reflecting their superior performance and durability.
