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- Message-ID: <221412Z30111993@anon.penet.fi>
- Newsgroups: alt.drugs
- From: an53943@anon.penet.fi (Mary Jane)
- Date: Tue, 30 Nov 1993 22:08:58 UTC
- Subject: Gravity.Bong.FAQ
-
- Here is an article I hope readers feel is helpful, in response to all
- the discussion about gravity bongs, how they work, and how to make them...
-
- ********************* BEGIN ARTICLE ********************
-
- THE GRAVITY BONG:
-
- I am a senior mechanical engineering student. My specialty is
- design and prototyping. I have worked for several companies
- learning how to prototype, and this comes in really handy for some
- of my "other" projects. Here is a pretty simple one...
-
- I was introduced to the gravity bong by a friend. He told me
- the full name as described to him was the "Afghanistan Gravity
- Bong". We were sitting around one night and decided to try one
- out.
-
- While I could go into detail concerning the mechanics of the
- bong's operation, I don't think that is really necessary. The
- reason it is called a "gravity bong" and not something else is
- this is what someone called it, that is how they described it to
- their friends, and now it is an accepted term for the following
- setup. I have observed some people on the net arguing about
- gravity vs. pressure vs. whatever. If you have comments like this
- as a result of this description, I refer you to:
- alt.engineering.geeks. The type of argument I have observed would
- have been halted a long time ago by declaring a "TECH TIME OUT !!"
- at our school. Take a hit man. I feel better now having said all
- that, so... on with the important stuff...
-
-
- GRAVITY BONG OPERATION:
-
- STEP 1:
- Place the bottomless bottle into a water source such as a
- bucket of water, sink, bathtub, larger bottle, fishtank (just
- kidding), etc...When the bottle rests on the bottom, the mouth
- piece should be above the water level enough to grip the bottle.
- I'm not sure if warm or cold water is best, or even if it makes
- much difference seeing as the smoke is not bubbled through it.
-
- STEP 2:
- Pack the bowl and place it on the mouth of the bottle.
-
- STEP 3:
- SLOWLY!! draw the bottle out of the water, while lighting the
- bowl. The herb should really burn and the smoke will look
- intimidating. Stop when: a)the herb is all ash (preferable), or
- b)when the bottom of the bottle is still an inch or so below the
- water level in the bucket. Begin preparing yourself for a huge
- hit.
-
- STEP 4:
- CAREFULLY remove the bowl without letting the bottle move
- downward (up a little is o.k., but don't lwt the bottom come out
- of the water), exhale deeply, and place your mouth over the
- opening. Inhale quickly and completely, allowing your head to
- move downward. Try not to drink any bong water as this kind of
- sucks! (although its like learning to swim, it's bound to happen a
- little).
-
- STEP 5:
- Don't cough and hang on tight!
-
-
-
-
- PACKED
- BOWL >> $$
- I I I\/I
- BOTTLE >> / \ BOTTLE >> / \
- / \ / \
- | / \ | | / \ |
- |~~~~|~~~~~~~~~~|~~~~| |~~~~|~~~~~~~~~~|~~~~|
- |~~~~|~~~~~~~~~~|~~~~| |~~~~|~~~~~~~~~~|~~~~|
- |~~~~|~~WATER~~~|~~~~| |~~~~|~~WATER~~~|~~~~|
- |~~~~|~~~~~~~~~~|~~~~| |~~~~|~~~~~~~~~~|~~~~|
- |~~~~|~~~~~~~~~~|~~~~| |~~~~|~~~~~~~~~~|~~~~|
- \__________________/ \__________________/
- BUCKET BUCKET
-
- Step 1 Step 2
- \/ = BOWL
- % $$ = HERB
- LIGHTER __ *% ** = LIGHTER FLAME
- >> |__|@**
- $$ SUCK
- /\ I\/I ||
- || / . .\ || I..I
- || /. . . \ || /. . \
- || /. . . . \ \/ /. . . \
- |. . . . . | /. . . . \
- BOTTLE >| SMOKE | |. . . . . |
- | . . . . .| | . . . . .|
- | |~~~~~~~~~~| | | |~~~~~~~~~~| |
- |~~~~|~~~~~~~~~~|~~~~| |~~~~|~~~~~~~~~~|~~~~|
- |~~~~~~~~~~~~~~~~~~~~| |~~~~|~~~~~~~~~~|~~~~|
- |~~~~~~~WATER~~~~~~~~| |~~~~~~~~BONG~~~~~~~~|
- |~~~~~~~~~~~~~~~~~~~~| |~~~~~~~~WATER~~~~~~~|
- |~~~~~~~~~~~~~~~~~~~~| |~~~~~~~~~~~~~~~~~~~~|
- \__________________/ \__________________/
- BUCKET BUCKET
-
- Step 3 Step 4
-
- THE DESIGN:
-
- FIRST TRIAL:
- First, a 2-liter bottle and a suitable bucket were obtained
- from the apartment. I cut the bottom off the 2-liter bottle and
- set it aside. I was able to find a couple of screw on caps, one
- of which was of the metal variety. I cut a rough hole in each,
- and glued them together, with the cup sides facing out. Into the
- side with the metal cap, a piece of screen was placed and fit real
- nice. We were forced to build this little thing because we didn't
- have a bowl handy.
- This worked o.k., but quite a bit of air flowed in for the
- quantity of herb which was consumed. Also, it was a pain to
- unscrew the cap after lifting the bottle. Overall, we all ended
- up having a great time and the first trial was still a success. I
- leave this historical description in here because: a)this may be a
- good enough system for you, or b)you are also in a pinch for
- something right away as we were!
-
- SECOND TRIAL:
- Having decided the activity was fun enough to warrant further
- development of the gravity bong, and having access to a machine
- shop, I designed a bowl just for this purpose. This incorporates
- a nice sized burn chamber (approximately = to 5 bat hits from a
- small bat), a small screen, and an o-ring seal to prevent air from
- passing anything but the burning herb. It drops out a pretty
- hefty ash after each hit.
- Here is a horizontal sketch of my gravity bowl design:
-
- FITS ___
- IN ____O| \ _______
- BOTTLE >> / \__________/ _____|
- | |+
- |-----------------------/ + << SCREEN
- HOLE >>>> |-----------------------\ +
- | __________ |+____
- \____ / \_______|
- O-RING >> O|___/ BURN
- CHAMBER
-
- You could make the dimensions to whatever you think may work
- best. I put a 1/4 in. hole through the bowl, with a 3/8 dia. burn
- chamber that is .400 in. deep. It fits nicely inside a 35mm film
- canister for storage and TRANSPORTATION to parties (no plans to
- build more, though several friends have already tried begging!).
- This new bowl works very well and burns quite efficienty,
- filling the bottle with dense smoke. The only change I have made
- to the apparatus is to offer the option of a milk jug in place of
- the 2-liter bottle, with a plastic adapter atached to the jug
- which makes the mouth the same size as a 2-liter bottle.
- I built my setup some time ago, but the other day someone on
- the net mentioned using a tuba mouthpiece. Not a bad idea. Also,
- people have said they used aluminum foil with holes poked in it.
- The point is to get a lot of burning done without using an overly
- large volume of air.
-
- TRIAL THREE:
- This has not been done yet, but the plan is to design a multi-
- user setup using a larger water bottle (like the Poland Springs).
-
- TIPS:
-
- To get really wacked, breath back into the bottle, allowing it to
- rise back up to the beginning of step 4, and inhale again. Do not
- however, deprive yourself of too much oxygen. I used this method
- and took a full minute to take the hit, breathing in and out, and
- was immediately wacked, staying that way for several hours from
- one hit!
-
- Have a "Gravity Party" with many friends - lotso fun!
-
- Some people like to push the bottle to the bottom, and then
- inhale. While this does act to push the smoke into your lungs
- (kind of like breathing in a balloon), I don't really feel it is
- any faster. If you try this, don't displace so much water that
- the bucket overflows.
-
- If it is your first time trying the system, do some trial runs
- without packing the bowl and lighting it. This is a must for a
- first time user from the point of view of risk reduction (won't
- chance losing precious smoke).
-
- ********************* END ARTICLE ********************
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