You definitely need to open it up. We open up whenever possible
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I agree. Fresh air is key.
I’ve made the mistake of forgetting to vent my little hoop house before work and came home to a completely torched crop of veggie babies. I almost did it again last year, lol
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The one whole faceside opens up …
I thought I’d be doing harm mixing 50 degree weather with the jungle like environment in there …
20 pepper plants we planted …actually put felt down in this one as well …going to try and find a rototiller tomorrow …welds and piping separated from the previous unit right as I finished one hoop house 
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We fried two trays of zinnias not opening it up.
The air exchange will get rid of that humidity in 15 minutes
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Yeah, I’ll just crack mine like a foot when I leave for work. It can prevent catastrophe. I totally learned the hard way. Hell, it was probably like 150° in there and 100% RH when I ran and opened it. As soon as I pulled in the driveway that day, I looked over and immediately knew I’d effd up. Lol, i guess the best lessons are often learned in the hardest of ways! 
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If you go the cat route make sure its a Junkyard Cat & name him Agent Jack Meower.
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And make sure to get him some kitten mittens for inclement weather! 
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Of course, otherwise the rats will hear him coming. Kitten Mittens = Ninja Mode
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No feeling like the feeling of knowing that you fucked up!
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I don’t think you could grow in them without venting. They get super hot 
We can’t use a cat because of his dogs!
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True that! Is that sinking feeling in your gut…
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My bird dogs will eat kitties too, lol.
Use the dogs! They can be mousers. 
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Might I ask what the details of this method might be?
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Here ya go @Ghgrower
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Thanks @HeadyBearAdventures. Wow, so just placed on top of the castings?? Interesting
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I’ve previously read this by JP also. Though I have yet to try it. I think he swears by it.
I’m old school with a damp paper towel on a plate in an unsealed ziploc on my cable box, lol.
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That is what I am like also. Paper towels all the way. I tried it and like it.
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So far everyone that has tried it now also swears by it!
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Bandaid haze ix I’m pretty sure
Crippy collection escaping my basement! Give them bigger pots tomorrow. @OriginalDankmaster96
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The B has the potential to be a real commercial producer for your fields o green
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