Ron,
Thanks for your post;
No they are 1/4" brass rods; when I first started the cell, it started to turn water to blue color. Now I have electric tape on bare area of the rod. I think I should have used steel rod but initially thought of having good conductor for the rod. Does it make diff? May be small, I do not know...
Vacuum, No sure… still wondering. I am not sure where I can connect in my Honda Accord. I can understand little-bit auto stuff but can not mess around too much. Can you direct me to any post that has vacuum hose connection? I would like to explore the possibilities.