Water trap? We never use the electrolyzer directly - we always use a bubbler (a jar contains clean water) to sort of clean the HHO generated and being passed through this bubbler. You can call it KOH solution trap as KOH is what we use in the electrolyer and we certainly do not want KOH solution being sucked into the engine. We find that as long as you control the current so that the KOH solution does not reach its boiling point, then you should not see any water in the tubing connecting the bubbler to the engine air intake (sort of dry HHO) although you may see some water got caught in the tubing leading from the electrolyzer to the bubbler - maybe like you said due to the bumping of the vehicle on the road so that water in the bubbler spills into the tubing.
If you really want to prevent water from entering the engine, you could put a thin piece of sponge on the surface of the water in the bubbler. The sponge should stop the water splash and at the same time let the HHO gas pass through. Do you have a better idea?
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About Site Admin: Trained as a chemist in the field of electrochemistry (Ph.D. in Physical Chemistry from the University of Calgary supervised by Dr. Viola Birss). So this new way of saving fuel with a cleaner engine exhaust by injecting H2/O2 mixture (HHO) from water electrolysis gets me excited. Currently working on testing various HHO generators and perfecting the electrode design for optimized H2/O2 production.















