I dont have a purge kit on my car right now. Just because its not very high on my priority list of mods right now. This can be useful for people who dont have a purge kit yet on their car.

I never need my line purged and it will never hurt my solenoids, even if I dont manually open the line after im done.

You will need a Nitrous pressure gauge that is mounted on the bottle. The actual pressure gauge should be attatched to a manifold. The manifold is the part that screws onto the bottle nipple and normally has one port on the front for the pressure gauge and another one on the back. The line attatches to the bottom of this manifold.

Normally you will never need the extra port left on the manifold. Most people have theirs sealed off with a set screw. Open your bottle and put your ear next to the set screw. If you can hear air coming out then you know its leaking n20. But this can be a good thing. A very small leak will not affect nitrous delivery or the desired a/f ratio.

As long as your leaking just that small bit......your lines will stay air free. Then, when you close the bottle you can just leave the lines closed. The n20 will leak out in about an hour....... I never fear starting my car in the morning because I know the lines are cleared.

Just make sure its a good slow leak. Not enough so that you can hear it leaking while your sitting in the drivers seat. Just make sure that is loosened enough so that the n20 leaks out in about an hour or two.

Have Fun!