most popular power washer pump suppliers, including Annovi Reverberi (AR), Hawk, General Pump, Cat Pumps, Comet
AR is old line Italian pump maker, they also make low cost powerwashers, General is usually pro grade as is Cat. My 4000 psi unit had a Cat pump.
I don't know much about Comet. Are ceramic seals a plus?
Learned long ago putting antifreeze in them over winter was really important after I wrecked a nice Cat pump. Never again. Always put the unit away with some name brand, I think Briggs,
antifreeze and pump lube in the system to let it overwinter with.
I always dreamed of a heated water/steam pressure washer to get all that grease off instead of just smearing it around.
I also learned that if you aren't careful using it on machinery you can drive the water into the bearings which clearly is not good.
I had a commercial grade power washer wand extension for doing the second floor of my home in NC. Fully charged under higher pressure, it was too heavy for me to handle.
My much larger fireman friend was even tired by it. Just know you need strong arms for these things. And the more you crank up the pressure, as any fireman knows, the more that line
will fight you.