If you saw my mini-posts in the chat box then you probably already know whats going on. Heres the picture of my gun that I am modifying.

All I did was saw the tip of the nozzle off so more air can come out, and it seems to work. I plugged the hole where the water used to flow into. It gets better range with it plugged (seems so). I have a PVC/CPVC coupler on the nozzle that fits very snug on the front. The problem I have is that I need to pump it 20-30 times to get decent ranges (60+feet basement is to short to measure for sure.). Also, if it doesn't have enough pressure I hear a loud hissing sound and air is leaking out. Anyone have any idea whats it wrong? If not, it works good and I can pump it 25 times in about 10 seconds.