I see that. About the flashback arrestor I use: it is professional welder's flashback with check valve. Your flashback you use is just filed with bronze or some other kind of mesh type material. Right?


Victor I use the same flash back arrestor that Astro does and for 16 LPM I use 4 3/8 hoses each with a flashback on them for the longer run. The hoses go into a small manifold which has a 1 inch hose exiting it and going to the point of injection which is only about 6 inches away from this little plastic manifold. This is in a large farm tractor. In this case the small manifold could get damaged but didn't the couple times I had it tested. There isn't that much HHO in it because of it's size. By the way each hose has it's own bubbler. You have to have all four bubblers connected together at the bottom to keep pressure/level equal in all of them.