In regards to the
PTO-Driven Rotary Pressure Pump
Self-priming pump pulls water from any source. Ideal for disinfecting, fire fighting, transferring diesel fuel and more. Fits directly to the PTO shaft of all tractors. Moves 1440 GPH at 540 RPM. Maximum pressure 425 PSI. 24 GPM maximum flow. Features a non-corrosive steel impeller, full face rotor and a patented seal. One year limited warranty.
with a max pressure of 425 psi, I am not sure that this will work too well for a pressure washer. Even the smallest pressure washers I have seen are at least 1500psi. This pump seems better suited to high volume fliud transfers, and not to low volume - high pressure applications like a pressure washer. Just my .02