Thats too complicated without that black part.
http://youtube.com/watch?v=qUdKwMan2NA
1) Get a 2 liter, Bucket, Tin Foil, and a Knife..
2) Cut the bottom off of the 2 liter bottle..
3) Full the bucket with water..
4) Put the 2 liter in the bucket, and make a tin foil bowl on top where the cap used to be..
5) Poke tiny holes in the bowl, and fill the bowl..
6) Light the weed and slowly bring the 2 liter up so that the air from the water and the 2 liter is pulling down and filling the 2 liter up with smoke
7) When full, take off tin foil and carefully set it on something
8) Put your mouth over the 2 liter hole and push down on the bottle while your mouth is still on the hole
9) Be High.
Hope this helped..
-J