Add the Touch Switch and do the same with the second twisted wire
So, to answer the question; A Touch Switch or do they really work? This HHO unit definitely works. I'm getting 10 more miles out of every gallon of over priced gas I purchase.Like I said, I chose an HHO design that was simple and quite inexpensive. It consists of two wide mouth mason jars with plastic lids, four pieces of Plexiglas about 2-1/8 inches X 5-3/4 inches X 3/16 inch thick with a slot half way up the middle of each piece lengthwise, so, two can be slipped together to form an X shape.