Neutral Plates

I'm trying to make a seperator wet cell where should I put the neutral plates?

http://gyazo.com/8f2e61c4e4f65817d18f8719c8f49fcc.png

Please explain your query and where u want to install this type of generator?
the best hho generator is dry cell.
I can guide u the details if u r intrusted.

make 2 cells, connect 1st cell cathode to 2nd cell anode. that will be your neutral plate