i just installed a wet zex nitrous kit, and the bottle pressure is cool right around 900-1000 psi but after i use it only a couple times the pressure drops and the nitrous doesnt hit as hard, is this normal...i though that the bottle pressure was supposed to stay the same at all times

 

not unless you have a bottle heater. the more gas that gets taken out of hte bottle, the lower the pressure will be

 

and if he sprays for a period of time the bottle will begin to cool its self down.....lowering the pressure. get a heater and keep it on at all times...it works nicely.

 

so the bottle heater will maintain the same pressure at all times

 

yea until the bottle gets really really low