Filling through a blow gun?

[Mr. Potato Head]

I was thinking about how I would fill my copper coaxial and figured that a "T" fitting would be required, 1 port into the gun, 1 port for the blow gun, and one port for the schrader valve. When I examined the the blow gun however, I realized that the tip it came with alows me to screw in my schrader valve as shown in the picture. Now before someone calls me mentally retarded and tells me to never make a potato gun, I AM FULLY AWARE WHICH WAY THE VALVE GOES. (I just haven't cut and flipped it yet because I want to make sure this would work.) So my question is, if I hold down the blowgun trigger while pumping will it work right? The only thing that I see as a potential problem is the fact that this schrader has cut sides. I'm not positive that teflon tape will seal everything up with these cuts.

[Crna Legija]

yea it will work lot of people use it, you can take the core of the valve out so you don't have to take the schrader valve out every time you wanna shoot

[Mr. Potato Head]

Ok thank you very much. I just wanted to be sure.

[Lockednloaded]

teflon probably won't seal that gap, try epoxy. I recommend you get a proper 1/8" NPT schrader, it will screw directly into the blowgun, and you can usually find them by the air compressors at hardware stores.