I think my forum name gives it away, I am a home snow maker looking to make a new snow gun and I need a little help from you guys. Here is my dilemma/situation. I have water flowing at 350 psi, into a pipe that has 100 psi, a differential pressure of 250 psi. I only want .06 gallons per minute of water to enter into the air stream. I was wondering what size orifice would be need to achieve this? thank you all for your help is this possible?