Setting up your marker?

[paintcop]

Hi,
Is there anywhere/anyone i can go to and set up my marker before i venture out on a walkon day.
I dont have my own air tank or chrono at home so just need a half hour or so shooting a few balls to set it all up( ie setting FPS, BPS, checking for leaks etc).
Cheers in advance xx

[Andy-YPC]

If you turn up early enough, there is always opportunity to do just that, and plenty of people on hand to give you a few pointers.