That is max pressure. You don't get anything like you would out of your kitchen sink, but it is plenty of pressure and plenty of water. I was honestly supprised by what came out... When you look at how small the "straw" in the tank is and the size of the hose going into the wand, I wasn't expecting as much as i got...
Is the water pressure as seen in the photo with your boy about as much pressure as you can get out of that tank?