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Registered: 07/30/16
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Last seen: 1 year, 9 months
Making a blackout system
    #817843 - 08/07/16 11:29 AM (1 year, 10 months ago)

Hey all, im wanting to start depriving my plant of sun so what shall I use to do this? I have no idea

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Re: Making a blackout system [Re: Potheadhobby]
    #817846 - 08/07/16 11:39 AM (1 year, 10 months ago)

I did it with my greenhouse. I bought a heavy duty 9 mil tarp and that worked really well.  It was more like 18 mil of thickness since I folded it over. You just need to remove the tarp during the day for 12 hrs then put it back on making sure there's light leaks.

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Re: Making a blackout system [Re: Potheadhobby]
    #817847 - 08/07/16 11:42 AM (1 year, 10 months ago)

You're gonna have to make a frame around the plants that a tarp can be pulled over. The tarp can come off once it gets dark out so the plants will be under it for only a few hours a day.

PVC pipe is fairly cheap and some kind of tarp should pull it off.


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Cannabis, Marijuana, Ganja & Greens >> Cannabis Cultivation

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