Gunner Asch wrote:

On Mon, 20 Sep 2010 07:32:29 -0700, "Steve B"
wrote:

Does a power washer have to have pressurized water on the inlet, or will it
draw from a tank source?

Steve


Most will draw from a tank, many older models do.

The big issue is making sure they get primed. Hence the tank needs to be
a bit higher than the pump.

A tank source higher than the pressure washer pump *is* a pressurized
source.

Most pressure washer pumps will not give you any reliable suction lift,
and can be damaged if they cavitate / run dry. As a general rule, if you
want to use water from a pond or the like, you will need to use a second
"charge" pump to get the water from the pond to the pressure washer. A
filter is also a good idea.