On 02 Oct 2004 07:02:26 GMT,
(Playintennis5274) wrote:

in a gas engine after the exhaust gas is... no here's a better example, any
centriguel ( i know i spelled wrong) pump when liquid is forced out of the
impeller housing more liquid is drawn in to replace the old. Vaccuum

Pressure washers don't use centrifugal pumps.