You will need:
1 2" pvc pipe
1 2" pvc end cap
1 2" pvc terminating end cap with threads and the screw on end thingey.
1 nylon pipe around 1/4 in( that's what I used)
A jar or cup of water
A small clamp
Teflon tape(optional but I won't gaurentee that it will work without it)
Stainless steel bolts(the longer the better, and skinnier the better)
A drill and drill bits
Vice grips or channel lock pliers
One hour ish
Step 1: The Reactor
For the reactor you will need one 2" pvc end cap, one 1ft 2"pvc pipe, and one end cap with a screw on cap to put in the mixture.
Glue the the end caps on to the pvc, so not get glue on the threads of the top connector.
On the bottom of the reactor, drill two holes the size of bolt you will be useing and screw the stainless steel bolts into the bottom of the reactor. Leave enough room on be tween the outside of the reactor and the bolt head to attach alligator clips.
Step 2: Getting the Hydrogen Out of the Reactor
Drill a hole in the screw cap just a bit smaller than the pipe. Insert the pipe just a 1/4 in past the hole.
Step 3: The Bubbler
Get a jar or cup with water in it and put the nylon pipe in it and hold it down with the clamp so it stays there. ( I had to use the clamp here because I find that nylon pipes seem to have a mind of there own)
Step 4: The Power Supply
You can either use a 12v computer power supply or a car battery or car battery charger.
Attach the 12v wires and the ground wires to the two bolts. Polarity doesn't matter.
Step 5: Making Hydrogen
Add water into the reactor with a generous amount of baking soda and screw the cap on.
Attach the power supply and turn it on, you should see bubbles coming out of the pipe in the bubbler. If you want you can add soap to the bubbler and light the bubbles with a long lighter.