Replying to My homemade snow gun doesnt work :(

i made a snowgun using a forum idea i found a long time ago before i was even a member.  The problem is i cant find the forum with the design i used otherwise i would go there.  So the snowgun is all built and tested but failure.  It uses a garden hose and an air compressor, no powerwasher.  I had a problem with the air going down into my houses water supply cause the air was more powerful then the water so it would push it back.  I fixed that with a checkvalve.  Now it runs perfect and I can get a fine mist thats powerfull and looks like it will make snow.  The problem is that it doesn't.  That is why i need your help, please post your ideas and suggestions.  Thank you in advance
(PS if pictures are needed just tell me and i will take some then upload them)