Hey guys so I had recently purchased A brand new six jet 2 inch evolution Wand, I’ve used these before and I’ve come across a problem that I’ve never had before. When I use the wand I clean at 400 psi, it seems like I’m only getting about 100 to 150 psi out of the wand. I’ve switch to different tools and they all work her usual what do you think the problem could be with the wand?