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Maybe this article is of some use... http://www.cannabis.info/USA/library/5909-rolling-papers ^from above: " If a paper is burned as a test, the ash it produces should be very small in quantity and a uniform light gray color. Dark ash suggests that the paper may contain contaminants"

"How do they know? According to botanist Daniel Chamovitz, Thomas Knight 200 years ago assumed that plants must sense gravity. They feel the pull of the Earth. Knight proved it with a crazy experiment involving a spinning plate."...

Growing Roadrunner 2 (auto). DWC under CFL's. I've read before that often seed descriptions give finish dates that are a bit "optimistic", and the grow often takes a bit longer. I'm about a week ahead of the suggested harvest time and I'd say about 90% of my trichomes appear milky. No signs...

Three months... did he have to grow it for you? haha. Sounds you might have found your new "guy" - too bad about the wait though!

According to their T&C, joining should indeed be free... I wonder if the fee you noticed was the "hold" they mention? "Provided that you (i) never enter a single fee-based chat room, and (ii) have not elected to participate in a premium service, you will never see a single charge from...

I decided to purchase a variac. Super quiet... brought it down to about 50v and it's a nice easy breeze. Just what I needed! thanks guys!

I put a voltmeter on the speed control and on it's lowest setting, it's still feeding 88 volts... could be why it seems to make little difference ... ?

I haven't connected it to any ducting yet, so that may bring it down some. But it's certainly louder then anything else in the house just running wide open. It's also an issue that it's really moving too much air... I'm working with a very very small space (think, rubbermaid grow box). PC fan...

Just received my Tjernlund 4" inline, with speed controller by the same company. It's extremely loud. Even with the controller at the lowest possible setting it still seems to be moving quite a bit of air. How slow can generic speed controllers get? Down to a crawl? I only need to move a...

OK fair enough. Approaching this from a different angle... how loud is that hum anyway? My entire reasons for slowing the fan is to reduce the noise. Am I just replacing that with a loud hum or is it usually not too noticeable? Suspending the fan is certainly on my todo list... all ready...

I've found multiple reviews saying it caused motor hum on slower speeds. Seems hit or miss, depends on the fan :-?

Anyone have an Active Air 4" inline such as: http://www.ebay.ca/itm/NEW-HYDROFARM-ACDF4-Active-Air-4-Inch-Hydroponic-In-Line-Fan-165-CFM-w-Brackets-/390505711198?pt=LH_DefaultDomain_0&hash=item5aebf4465e#ht_5289wt_1186 I'm looking for a speed controller that won't cause any hum. Of course my...

Is that the case with the smallest filter as well? When planning my setup I noticed they list axial "computer fan" under the recommended fans for the CanFilter 2600 http://canfilters.com/canfilters_2600.html I may have misunderstood what that means, though...

It is a pc fan, (Scythe "Gentle Typhoon") designed to work better with static pressure then the standard. The market is mostly water cooling applications where they are pushing against a radiator. An inline fan would be much better but noise was also an issue I needed to consider. Given the...

Is longevity usually the main issue? If I were to strap on any brand name filter will I get 100% elimination for a grow or two... or do some actually 'leak' odor right away?

I'm looking for an appropriate carbon filter for a micro grow (2.5 x 2.5 x 3) area, venting with a 58CFM fan. As much as I would love to go overkill I want to keep the price as low as possible. At the same time I want something effective (zero odor). I've been doing a lot of reading and...