okay thanks for the info, hadn't thought about that.
anyway some news:
- i can't measure the output at the moment because i have an open system without any gas valves to really measure it, the pressure needed for the gas to go through a hose cant build up, so i would have to get a new closed container like ravi or d. lawton and many others have.
- the gap is to small. i hoped that a small gap would increase gas production (C = e0 A / d), but i haven't thought about the calcium (?) layer and that the bubbles can't really go upwards out of the pipe because of the small room in there. Also the current is very high. Solution: make the inner pipe smaller (decrease diameter about 1mm), i'll see
disconnected the bifilar coil for conditioning:
- i have the cell running for 5 hours now at 9V, the amp draw decreased from 1.42A to 1.37A at the moment (1 hour later edit: 1,27A, still getting lower)
- instead of the long time waiting for the buildup of the calcium layer, would it not be easier to isolate the inner pipe with thin adhesive tape like jnaudin did? or has the material of the layer influence on the gas production? anyone tried that?