Paintball Rifle Questions

[Cubman]

Hello, let me start off by saying that I have searched for these answers, but I must be using the wrong search terms.

I have a couple questions:

I followed this how-to guide to modify my sprinkler valve:
http://www.spudfiles.com/forums/modding ... -t305.html
I drilled the 1/2" hole, but I can thread the 1/4" NPT valve in by hand. Will the fitting stay in, or is this too loose? Do I need to drill a larger hole, and use a 3/8" to 1/4" Reducer to connect the fitting to the valve?

I was going to use a 18" pre-made hose from The Home Depot to connect the valve to my blowgun, but it is not flexible enough, and I going to return it and use normal air hose. Can I purchase a short length of 1/4" air hose in Home Depot, or is that only available online?

I forgot to test this before I threaded the barrel into the sprinkler valve, so I will have to ask you all. I used a 3/4" CPVC male adapter (pressure rated) to attach my 3/4" CPVC barrel to the sprinkler valve. Do I need some sort of stop at the bottom of the barrel to keep the paintball from rolling back too far, or will the adapter do this?

Thanks for any help.

[cash68]

How is it loosely based off it? It looks the same to me.

[Cubman]

I don't know what size his barrel or chamber are, or what fittings he used to make it.

[cash68]

So it's the same design, but with different parts.

[Cubman]

So it's the same design, but with different parts.

Yes, if that is how you see it. I took out everything about the cannon, I just need some help with the questions I originally posted.

[Cubman]

Can a mod please delete this thread? I figured everything out, and don't want to clutter this forum with useless threads.