I feel like I can help with this thread a little bit. Im new to trapping and fur handling but I have pressure washed full time, both residentially and commercially, over the past 2.5 years. First off, the psi doesn't really matter. You should be more concerned with the degree of the tip you're using. And I've heard most trappers say to use only the rotating nozzle but I don't own one and didn't use one on the coon I fleshed today. I would recommend not wasting my money on a low psi and electric washer. I'd go ahead and get a good brand Simpson with a Honda as the motor and something like a cat or general pump rated at 3000psi or more. I'd start off using only the 40° tip and make sure you don't get to close or it will cut the pelt. It's also really important to constantly keep that tip moving. One second too long and ,again, you'll tear a hole. Be extra careful around tail, arms, and eyes. Run antifreeze through the chemical injector each time you're done fleshing if it's in the freezing months and at the end of the trapping season put stabilizer in the tank. One more tip, don't flesh any where near building or cars unless you want to be soaping and scrubbing the rest of your day. Let me know if you need help with any more pressure washing questions.