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Depends what the lights are. If it's 12 x 50w or similar then no, it's not overkill. If it was like 12 x 600w then yeah!

bumpity bump

Already got the carbon filter and inline fan and negative pressure, but it's not always 100% effective, when humidity has been high, it is letting a lot of smell through. Ozone is a very expensive option that leaves a telltale smell of its own, two reasons I'd like to avoid it if possible...

page three and no reply :( bump

The neighbour said something today that terrified me at first, saying there was a strange smell in their attic that she couldn't seem to get rid of. Their house has been recently renovated (six months ago) and I suspect it is new carpets or something like that. She can't identify it, just says...

Possibly a combination of all those things. It's dropped in my grow too. Just got five damp crystal tubs, and put one in the room, the rest in the tent. Fingers crossed.

I am in the same boat and curious as to the safety of using sulphur / peroxide / actinovate on buds you plan to smoke. Are these products to be used only in veg?

What everyone has said about reading the plants is absolutely right, but probably hasn't helped you much in the way of planning for what work will be needed so I thought I would offer my experience - which you should NOT take as a rule or method but just as an example of what a fellow novice...

I have a clip fan in there, but I can't clip it to anything because it seems to resonate through the whole damn house! The pots and waste trays seem to act as amplifiers for it. I currently have it sat on a block of celotex pointing upwards.

Thanks MrBlu, I will keep my fingers crossed! I currently have a desk fan oscillating in there but it's a) noisy and b) only blowing around the lower parts of the plants. A tower fan would be ideal. I'm going to go shopping for one later this week, just got to find one that runs quiet enough.

Chris, they look mighty fine. MIGHTY fine.

I currently have 5 inch ducting and fans, the only bit that is different is the carbon filter which has a step-down ring from 6" to 5". I am looking to upgrade my exhaust fan, and one of the best options I've seen is a wooden acoustic box fan. Trouble is, these start at 8". What, if any, are...

I would love to get an air conditioner but they really are prohibitively expensive. It would kill two birds with one stone though. 71 is the humidity i clocked yesterday 1h30 after lights on :S really very high. Thankfully the weather's r/h has dropped today and we are in for some cooler...

Dangnammit that isn't what I wanted to hear! Dehumid machine I have is too noisy and too hot as it is, and that's a $400 machine :S Guessing when you say no success, it did nothing at all?

No idea, you can "like" posts, but I'm not in this game for +rep, we are all in the same boat, learning from each other and that is good enough for me. Gotta love this site and the (mostly!) wonderful, helpful people on here.

Thanks friend, I think it will be a necessary evil, a choice between them taking longer or being burnt by the lights. Curse my newbie mistake of vegging too long!

Hi folks, Has anyone got experience of using dehumidifier gel / crystals such as these http://www.drizair.com/products.html in their grow? Humidity is sky high at the moment and I am battling to keep it under 70% even using a big, noisy, expensive-to-run dehumidifier right next to my air...

It says 60-65 days on their website. I've been told to err on the side of caution by one week from what the breeders claim.

What's the danger / risk of if I did it at week 4?

Sorry to jack the thread, but I'm interested as to how late on you can still supercrop? I am waiting for my autos to be done before I will have more horizontal space, but I worry that it might be too late to do any training / supercropping on my photos which will be at week 4 or 5 by the time...