status so far
I am using the dry cell version.
With this type you need a bubbler reservoir and then a reserve water reservoir above it so that the electrolyte is washed from the HHO gas(the baking soda is not so good in a cars combustion chamber) you also need a flash arrest-er to prevent back flashes from the air intake it is a good safety precaution($9.00 on eBay). I ordered and have received a special programmed(for a Buick 2005 La Crosse) MAP processor chip that will adjust all of the oxy sensor parameters so the main car computer doesn't dump more gas when the oxy sensor on the exhaust thinks the car is to lean.
I could buy a ready made bubbler(200.00 made of stainless steel) but I decided to make my own out of a 12"x 2" pvc pipe with end caps(6.00) so far so good.