Step 1: Gather Materials
drill with bit (see below)
1/4 in. tubing
2"+ PVC pipe (its supposed to be an endcap... I didn't have one so I used a tee and just taped it up totally ghetto)
male threaded/1\4 in. pipe nipple
I'm not sure how big the drill bit is, but make it the right size for your male threaded/pipe nipple piece.
Step 2: Cut Top
cut the top just a bit bigger than the top of your bucket.
drill a hole and screw in your male threaded/1/4 in. pipe nipple.
Step 4: Put in Your Feed Pipe
you should use an endcap and a larger pipe for this. simply follow the pics.?
Step 5: Bind It Together
it would be better to use duct tape.
Step 6: Using It
this can be used for many things such as a small stove or Bunsen burner. the flame burns very hot. so, what do you feed this beast? you're probably going to want to start out with some cow or horse manure, and some water. then you can add almost any spoiled food, the more spoiled the better. for increased biogas production, keep in a warm area, and or add jaggery(Google it). don't add egg shells, coconut husks, onion peels, etc. and more fibrous materials. human waste can also be used.