The other day my wife accidentally hit her own leg with the power sprayer. It is a miracle that her foot is still attached as opposed to, say, in Georgia. A power sprayer is basically a hose hooked up to a small engine. That extra power gives the water enough pressure to push a dump truck uphill. We have been using the power sprayer to clean our driveway, which has the kind of ground in dirt that cannot be removed with a regular hose or even small explosives. My wife, Michele, suffered extreme pain and some minor bleeding. So really it was not that different from when some family members visit.