i just got some dry ice, i think this will work well setup like this, what do u think/ im just supposed to use it when the lights are on right?

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What kind of light are you using? Keep the dryice away from your light and keep the room well sealed, to keep the dryice from escaping the room. At night put it into a cooler. In fact if I were you, I'd keep it in a cooler all the time, lifting the lid during the daytime, and closing it at night. Just dont lock the cooler, cause the co2 will blow the lid off if it builds up too much. After 2 days of usage, you'll see the difference.
Peace

as video mentioned, ain't the best set up for your dry ice you got there. evaporation rate will be far to high, the light probably gone bake it away in a day.

go with videoman's suggestions for handling, he knows about ice

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i have a big box of it, i thought it would be more direct if i had it by the fan, im not worried about having to buy more

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how long does the dry ice take to dissipate? and about how much does it cost?

Dryice varies according to where you buy it, be it the manufacturer or a middleman. Try this, dryice directory for locating some. The question about how fast it dissipates is an old one, and as of yet unanswered to anyones satisfaction. When I use t use dryice, I woud only use 50lb blocks as it is the largest available, and will last longer that five 10lb blocks. You might get 5 days from 50lbs, it all depends on how you set it up.
Going from memory it is clamed to dissipate at the rate of about 6lbs a day, but you'll be lucky to have it last that long. Too many factors that effect this. The fan is a good method, however, you want a fan on the floor, slightly angled upwards, as the co2 is heavier than air, and it will sink to the floor. This way you'll be gathering it from the floor and re-circulating it to your plants. You shouldnt pay more than $19.00 for 50 lbs of dryice. $13.00 and you got a good deal.
Peace

thanks for the info. have you ever used dry ice to cure buds? i hear its a really good method

You know....it's funny that you mentioned that.
What you're talking about is the Dry Ice cure method.

A. I've heard that it does work (sort of) Never did it myself, I'll stick to more traditional methods, water cure is about as wild as I wanna get.
B. It is an expensive pain in the ass (imho), but it IS quick, no doubt adout that...lol.
C. CO2 is poison (just like everything else - in over abundance)
D. I don't think this method would help the taste of the smoke any.

I've also heard of people using this as a method of freeze drying it for future use.
Peace

well curing with dry ice i guess is like freezer curing, it kind of works but rather bad since the low themps conserve the chlorophyll and it takes for ages.

if you want to use the same trick which is used to produce decaffeinated coffee, you are on the wrong track. that takes hypercritical CO2, so liquid under high pressure, plainly pain in the ass and it will flush out the THC too.

so as video stated earlier, that ain't the way to go

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keep the thumb green and the gun oiled, !

I'll read any of this guys posts just to get another look at that chick in his avatar...

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