See The Construction

First of all, you need to cut off the bottom of the 2-liter bottle. Try stabbing it with a pair of scissors at the point you want to cut it at, and then cut along the side. Try to make the bottom line as flat as possible, so you can stand it up.

Next, you need to stab a hole through the cap, and keep on stretching the hole so that the stem can stretch through, but not be loose in the hole.

Slip the rubber circle onto the stem before forcing it through the cap. Now the hole will be sealed and it will stay airtight.

Fill the pitcher about two thirds full of water and put the two liter bottle into the water with the cap unscrewed and off. When it is all the way in place, screw the cap/bowl back onto the two liter bottle. To use the gravity bong, you light the bowl as you pull the bottle up. Pull no higher than needed; don't allow the bottom of the bottle to come above the water level. Be careful, sometimes air pockets can fuck up a hit. Hold in place as you unscrew the cap/bowl; take away the cap/bowl and put your mouth to the top of the bottle and breathe as you lower the bottle. Don't lower the bottle too fast, or you will get a mouthful of bong water.

The ingenious thing about the gravity bong is that it shoves the smoke deep into your lungs; basically doing all the hard breathing for you. And it gets you really really stoned. This is my first time making one, but my friends have made them before. This one works alright, but it's not the best.

After smoking I decided to cover the brownies that were cooling because the directions said to. I didn't know if they meant to wait until after they weren't hot anymore though. I'm not sure if the saran wrap cover was a good idea; I looked at it a few minutes later and it was like ballooning up because of the heat coming off the brownies.

Don't even ask...