Today I built this flashback arrestor.
1st picture- It shows how I sanded down the air stone to fit part way in the pipe, so it would be a tight fit in the pipe and snug up into the cap.
2nd picture- Shows the nipple of the air stone coming threw the cap.
3rd picture- This is where you force the air stone into the pipe some more, forming a tight seal between the stone and the pipe, And the nipple and the cap
4th picture- Place your hose down into the cap, over the nipple, slide your barrel fitting down, followed by the nut, to form an air tight fit
5th picture- The finished flashback arrestor. Pipe can be any length, This is just what I had available.
Video of testing- I started with an air stone in each end, But it was overkill.
Have a safe day
Spike
