Different bubbler design, plz comment

[summonskul]

Now I haven?t tested this design because I don?t have a fully working bubbler yet (I made a design for my 89civic and am gathering raw materials for a boost system). I am wondering if I am missing a major flaw in this design of an "in line" bubbler.

It is a 1/4 inch, 6inch long galvanized pipe (looks exactly like this pipe http://www.qcsupply.com/Products/165.aspx but is about 3mm thick)
It will have to stand vertical like a normal bubbler

2-brass female threaded adapters at both ends. The one that will be facing upwards will be put in with Threadlock + teflon and then using a soldering iron seal the adapter and pipe making it air tight.

The one at the bottom will be sealed with Teflon tape so no water leaks out

Because bubblers don?t use up water, filling it needs to be only done once. With a Quick Grip clamp, pinch off the pipe at the top of the bubbler, unscrew the bottom barb (hmm I see a annoying problem if your tubing is taut) and turn it upside down. Now you can fill the pipe leaving say 1cm to 1 inch of space for the hho to collect in the bubbler. Screw the bottom adaptor and return to the vertical position.
Depending on your tubing is for your system, water will flow down the tube but not into your cell. It will stay in the tube (well for me it will because of how I positioned everything)
When the hho comes it will push the water into the "in line" bubbler, because of the 1cm-1inch spaces the bubbles will collect there.

I am thinking that if a flashback occurs the flame front will come down to the pipe into the bubbler, here the small amount of collected hydrogen it will explode but will be going in the same direction of the flashback and not into the cell. Or it can explode and there will be shrapnel everywhere 

Alright guys hope you can understand what I mean, I want to try it but cant do it safely at the moment, maby one of you guys can. All comments are useful, thanks.

[Doug1]

Why do you want to use a metal pipe? PVC pipe is cheap and the thinner ones wont be so distructive if you get a flash back. You appear to be building pipe bombs.
  An old gas tank explosion preventer from back in 70's was to use a mesh or something like a brillo pad material in portable tanks. It acts more like a candle wick if ignited rather then allowing the fuel to completely ignite all at once. It takes up very little space even if you fill the container with the mesh.
  Back to pvc it also happens you can get nearly any end or connection you can dream up threaded end plugs and such. My opinion is driving around with what looks like a pipe bomb under the hood is going to be nothing but trouble and if some one happens to see it who does not know what it is they will alert the local police.

[summonskul]

It doesn?t have to be metal but because the pipe is about 3mm thick I was thinking if a flashback occurred the explosion will be contained inside the pipe and any preassure that will build up will go out of the same direction that the flashback came in from. Pvc would probably work but I don?t have that on hand and the design is just an idea.

Consider the amount of hho in a 1cm gap. 3.14x 0.25inch x 0.25inch x 0.3937inch(1cm gap in the pipe)= 0.07726 cubic inches

I was thinking that if the pipe had 1cm of clearance for the hydrogen to collect then that small amount may not be enough for the pipe to blow up(or pvc). The volume may be a dangerous amount to explode inside a pipe(metal or pvc) but I am not sure so you gota tell me.
The adaptors are all ? inch so that there is a large amount of space for the explosion to escape from(maybe?).
I have seen allot of people keep a very large amount of clearances in their bubblers but then the bubbler blows up after a flashback because they seem to forget the large amount of hho that was sitting inside the bubbler

And about the police thing, o come on! who would be able to see from that far?. I think your hho cell and an out of place pipe into your intake would be more obvious than a small pipe on the side. Have you seen any one driving with an hho cell? Oviously not because when you are driving its best to keep the hood down?

[ramset]

SUM  all that aside   you mention not loosing water from the bubbler ?  you will    and depending on your stew  could harm your engine  also a pop off device/ safety valve  on bubbler/scrubber  is the way to go   expandable rubber stopper in top The way togo    get a bigger bang has always been to try and stop it    don't go that route with hydrogen /oxygen 8500 feet per sec  propagation  boom   let the small pop happen with the safety valve /rubber stopper on bubbler   Chet

[summonskul]

i will probally be going with the tradional design, just need to make it long and think so that it will fit in a cool place in the engine bay