The only difference between the two tools is that hydro-jetting machines use water that is under much, much more pressure than a standard pressure washer that you can rent at the local hardware store.

The main difference is that power washing uses highly pressurized steam to do the cleaning while pressure washing just uses unheated tap water, without the help of a heating element.

Vinyl siding can withstand a powerful gas pressure washer (2,500-3,000 psi). Aluminum, stucco or soft-grain wood homes will do better with a less powerful washer (about 1,200-1,500 psi).