Foam will always be there at higher outputs, build a bubble to separate it from anything you are running the gas into, a dry hho gas is what you want for an engine.

I don't know who first suggested to me to look at Walmart for a suitable electrolyte container but THANK YOU, THANK YOU, THANK YOU!!!  $6 today bought me a 8" tall clear acrylic jar with flip top lid and fully sealed gasket. Just wait until you see what comes next. For 12V brute force the plates are being temporarily rearranged +nnn-nnn+nnn-nnn+.  9 cells divided by 12-14v simply does not draw enough current at any electrolyte concentration.

@IH - If you haven't done so already, I'm ready for some electronics. If you have, please point me to the most relevant posts. Thanks.

My latest videos:
http://www.youtube.com/watch?v=QpQHIO2kw58  and
http://www.youtube.com/watch?v=8pjvxlUJU6w

ZFF

Hello, i humbly ask a few newbe questions and get ignored. I tried to explain about my computer problems, and am able to load pages at turtle speed ( hey turtle I would think you at least would be empathetic). so i found some info to read. still on the bottom end of the curve but moving forward. I found some obscure post mentioning pg.14 on this thread. I am teachable and willing to learn. I like to play hands on.
   IH thanks for the tip on sign shops, scored a 4x8 of plexi-glass. I have some ss but 304, does it matter?
I will start the build of the cell. will you then be my teachers again?

BTW I have wholesale sources on radiators. I like trading. 316ss electronics etc.


   
 

@zff Those walmarttubs are the ticket aren't they, I was looking at yours and it was like looking into my own lab, heres a pic
For the more advanced guys, IH, Dingus, turtle, and zff

I need some peer review and discussion about some of my findings. I have attached two excel files with the data from some test runs. I will explain what they are reflecting.

The series cell test subject is an open cell design, there is a picture of it below. I know that an open cell design is not eff. and has voltage leaks but I did this as a baseline test subject for a worst eff. model to base improvements on. How do we know if we are getting better if there is nothing to compare it to, right.
The tests were not significant and went pretty much as expected. I am using a 0-14v 30a variable dc power supply. General trends of note were, as voltage was increased amperage increased directly in proportion. As voltage increased over 8v temp would increase. From the data I am able to see that the amount of (ml per minute/watts) decreased as volts/amps went up. In other words it took more power per ML of hho as the voltage was raised, yes the overall production was higher but the eff. suffered. The best eff. was at 4v with 2.7 (ml per min)/watts, worst was 12.81 volts. All of this I was expecting to see, just as in moving a mass the faster you go the more power it takes 5 to 10 miles per hour takes less energy than 60 to 65 mph. I also seen the capacitance characteristic of the HHO cells, this cell will not produce any gas below 1.6v and will tend to stay at that voltage from its capacitance, it leaks down much slower from 1.6v to 0 than anything above 1.6v down to 1.6v. So having the data I wanted from this cell I built the parallel cell that you can see in the tub in the pics below.   
    I built the parallel cell with the same number and same size plates as the series cell, I used the same solution as I did with the series cell, I did this to have a completely equal comparison test. BTW the spacing is the same also.

    Here is where everything I know about electricity gets turned on its head. And I have not seen any other test cell do this, from arrons to all the other tinkers out there, not one cell I have seen has the characteristics of the parallel cell I slapped together, even though I did nothing I haven't seen 100 other people do.
    With the cell connected I increase voltage from 0v up to about where 12v should be, I expected this cell to draw much more current than the series given that there is a lot more + and - surface area in close proximity. BUT as the voltage increased from 0v it stopped at 2.42v no matter how high I turned the knob up. In other words with the cell disconnected the supply would read 14v, but with the cell connected it would only read 2.42v. And to make it more upside down, the amperage only increased as the voltage was turned up to 2.42v after that the amperage stopped increasing also, it sat staginant at 7.92a.

    The cell shunts itself at 2.42v and 7.92a and will not increase beyond that point, the water temp does not increase either, sits at 80.4 degree F, the power supply does not get hot, as if it was under a huge load and caused the voltage to drop. I am at a loss for an explanation, and let me tell you that does not happen to me very often, if ever.

    Another note worth aspect of this cell is that its eff. over the series cell is amazing. It is running at 4.3 (ml per minute)/watt. which is what ZFF just achieved in his new double series cell.

Give me a hand with this one guys, I wish I had a camera to run the test for you, but I don't.
What is causing this cell to lock itself into this voltage/amperage, why will neither, actually nothing change beyond this point.

Another point of interest, it seems if this cell is pulsed on-off but using the cell capacitance to keep the voltage above 1.6v (turn on and off about 1 sec on, 1 sec off) it still produces the same amount of HHO.

Another point of interest of the parallel cell, it does not produce the small bubbles that fog up the water, it produces 1/16" bubbles that leave the water clear. The bubbles are produced from between the plates not on the edges at all. The series cell fogs the water. The parallel cell also does not foam at the top, it gets some bubbles but not the highly dense foam we are all used to seeing.

It was me that suggested the walmart cereal boxes to hold 10 6x3 stainless steel plates. these can be operated in series maybe 70 plates (7 boxes) on 110 power = 1.4 volts about...each plate. This idea was not mine. It came from reading oupower.com projects. Seems a simple way to do it.....lots of water over the plates so they can run along time.