Why am I not suppose to use water when smoking dmt out of a bong?

No one ever told you not to ;] Enjoy
(and if they did, don't listen, just make sure to put it somewhere safe so you don't knock it over and get smelly dmt bong water everywhere ;P )

I love spice bongs, and I always put water in my chalice

I can't see why you wouldn't use water. The water is there to help cool down the smoke you're inhaling, making it less possible for you to burn your mouth/throat/lungs with hot smoke, if you accidentally burn the spice or if the temp simply gets high fast. It also traps unwanted heavy particles, such as small particles of lye, if they are present. These are the 2 major advantages I know of about this matter.

If you don't use enough screens/herb/ash/copper mesh, then when the DMT melts and leaks through the bowl piece, it will just go into the water where it's pretty much done-zo as opposed to bowls or the like where it will just recondense on the glass. That's the only possible reason I can see for not using water, but having said that, if you're doing everything right, this shouldn't even be an issue, and you should be using water.

Can I put parsley or marijuana on top of the metal screen and then put dmt on top and smoke it that way? or should I put another layer of parsley or marijuana on top of the dmt?

I like to just have crystals on top of cannabis that way I can melt the spice with the lighter slowly and once it's melted just basically blast the bowl full speed ahead! Adding a top layer doesnt do much other than burn the DMT. Just be graceful in your technique, hold your hits in ~20 seconds, and finish that bowl! The last hit is THE HIT!

the parsley spice sandwich method works great for me. I prefer a blue lotus spice sandwich but any not psychoactive or mildly psychoactive herb will work. The only time I have had a bong not work was when I put snow in the piece to cool the smoke down and the spice smoke got caught in the snow. doubt that even crossed your mind though

I love making my own bongs, and for DMT actually use a fairly ornate metal weed pipe as a bowl/downpipe peice.
I have it angled slightly down/ horizontal so there's no chance of the DMT melting through into the bong or very far along the pipe. I used to smoke my DMT on a bed of tobacco or weed, but since I got my turbo flame lighter I've been simply putting in raw freebase and heating the outside of the bowl until it gives me sweet, delicious vapour

I don't tend to use water just so I have the freedom of handling the bong without care (can't imagine seeing bong water all over your carpet would be particularly pleasant as you are sucked into hyperspace!)
My 'weathered pot-smoker' lungs can handle 2 litres of freebase vapour fairly easily so I'm not worried about the harshness of the smoke.

This seriously is not an issue with any techniques SWIM has used (Machine-Style Bubbler Piece, Mini-Machine Bubbler Stem, The Inspirator, The Inspirator mkII). Even when runoff did occur, it never made it that far; plus, apart from oxides, it's insoluble in water. A proper method can yield next to no runoff; SWIM accomplishes this consistently with the mkII listed above.

Use water cooling to your heart's content. SWIM's never even spilled a drop. If you can handle a hot piece, you can handle a bong for sure. SWIM used to rely on water cooling due to the general harshness of the vapor "the machine" may sometimes yield in some forms and methods, but now he continues using it because of the efficiency with which it delivers vapor due to higher pressure as well as the rapidity of vaporization the water-cooling allots--as in, the methods more forgiving of zealous heat-application, particularly when the vaporizer reliably prevents burning and substantial overheating.

Enhanced leaf / Changa + Bong = 1 hit and woooomph! for me... I'll be getting my GVG in the next day or two and we'll see how it compares - looking forward to sticking the attachment on a bong stem and experimenting with vapor bongs too

So yes, feel free to smoalk away using a bong, if you can get the whole load in one hit you'll break through very quickly, so be warned!

when you smoke dmt you want .040 approximately. When the DMT goes into the water, the water must take some of it out. When theres only a tiny amount of dmt, thats actually a high percentage of your original dmt. No water for me! If you smoke it properly, the smoke shouldnt be too hot anyway.

I having problem to smoke it like 4 failed attempts with some water on the bottom , I seem to do it to quickly or too slow Im not sure whats happening.
I use 2 ashbeds with DMT in the middle of it.
The thing is that I only get like 1 clean hit nothing comes out afterwards so I cant really launch off.

My greatest breakthrough was with a bong, I could smoke far more because the smoke was cooler. Cleared probably about 40mg, using the sandwich method.

SWIM regularly breaks through more than sufficiently with 30-40mg in a bong with water. Without water, one would be sucking a hell of a lot of air. Plus, if one's too careful with the heating it takes a bit longer to vaporize the whole amount if one's even got the lung capacity to take it. SWIM finds that it's wasteful to merely use a bong as a chamber and finds that there's power in the pressure of bubbling. The water allows one to draw out the filling of the chamber just a bit longer to ensure the whole dose makes it through and to take the dose far more rapidly when carbing.

Are you saying that when you smoke DMT through a bong the water actually stops some of the DMT from coming through?

Not true in my experience. I always always use water and have never noticed a difference compared to without water..other than it is easier to smoke and much cooler and cleaner a hit.

I thought the same thing, fractal. Why would water make the hit any less potent?

I love DMT through a bong. When I first learned to break through, the bong was the only way that worked for me. I have since moved on to GVG, however when I smoke changa, I only smoke it through a bong, with water in it of course.

I could swear I heard somewhere that the water cools down the vapor and some not all, is lost due to it recrystalizing/ de-vaporizing in the water.. Now that I've seen this thread I'll try it with some water in the bong.

let us know what you think about the difference Coastal_Shaman