Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Pressure washer should not increase pressure in the hose. You sure your house or supply is not too high a pressure? I have seen whee hose pressure is so high you pinch off a hose , it will rupture the hose.?? Have you checked pressure in the hose?Should not exceed 80 psi.
I see question is till open , did you find problem/