I am also converting some water wizard 1.0's to the hydroflex nozzles. I was told by the manufacturer that the pressure cannot exceed 1000 psi on any nozzle at any point, thus you have to set your regulator to 1000 psi when just the top boom is spraying since that is the fewest amount of nozzles in use at any given time.Hi all. We recently fitted hydraflex turbo nozzles to our fleet of water wizard 2.0's. The difference is awesome. I am just wondering though as to what operating pressure others are operating at. Im at 900 p.s.i but would like to crank it up a bit.