I would rarely use it so I was looking to spend as little as possible and not have another motor to maintain. I was thinking of something like a 55gallon drum and pump on a carryall type thing with castors. Maybe use it to fertilize as well.Guessing you’ll need some speed increase to make the pump spin at the right speed.
My concern would be that after sourcing everything to make it work right, you may just be better off with a stand alone? Toss it on a trailer with a water tank (IBC tote?) and you’ll be off to the races.
I've thought about doing one, I just haven't thought too much about it. I have a decent gas powered unit.Sure, there's cheap 1,500 psi machines at a couple gallons per minute. Then there's 4k psi machines at six gallons per minute. Apples and oranges. I was just thinking you might be able to save the cost of a motor by rigging up one for the PTO and end up with a more powerful washer. Probably just daydreaming though, I have too many projects.