Being completely honest laziness by not getting the end of the barrel as square as possible

So are you saying that I should get a stronger spring or just forget about this idea

No this is going in a 3" tee haha I'm using the soup can as a piston haha I just cut it in half to show what I'm pitting in the piston

im working on a barrel sealing piston valve and i could use some feed back on if this is a good design or not [/img]

I found the perfect way to seal off the barrel using a soup can idea unfit from my other question about a piston it's a Tank to bowl gasket for a toilet it fits perfectly around 2" PVC and made a really nice seal for me if anyone else wants to try it out (it will need some trimming to fit in a 3" te...

Thanks I was doing some research and polysulfide rubber or silicone rubber any opinions on that

What is the best type of rubber to use for a pistion on a piston valve

Well my plan would be to get a cheap pancake compressor and take the part that connects to the air tank and hook it up to the in take valve where you would normally put a female connector for an sir hose

I'm currently working on a punetic cannon and I've been Going back and fourth Ruth the idea of directly hooking up an air compressor motor to the air inlet on my piston valve or just keep it simple and use an air hose coupling

Thanks I appreciate the help and ya it fits perfect in side the vale haha

Hello right now I have an old soup can as a piston for my 3" piston valve I have been debating wether or not i need to fill it with something and was just looking for opinions on if I should or shouldn't and if so what to fill it with