DIY Dehumidifier

Going to finish my flower grow In a 4 by 4 tent And I’m looking AT a Dehumidifier. I see you can make a simple 1 out of a couple of buckets and rock salt. Has anyone tried this? Thanks

I have not but I use this;


One lasts a year+ in a 4x4

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where were you last year I spent a lot of money on a dehumidifier. LOL

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While both methods will remove humidity it will not remove humidity fast enough.

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Good point. I only have three plants and for the cost it’s worth exploring. Thanks for your reply

Spend it now, or spend it twice later.

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I put mine in the tent at light flip and within 24 hr it’s at 50%rh and it stays around 40-45%. 24 hrs is fast enough for me.

Problem is you have to exchange air in the grow space: ideal is once every 2 minutes. With a complete air exchange and/or a fan running full time you will have to have a good sized dehumidifier. I’m running one plant in a 2 X 4 now and the dehumidifier in there with the plant is sized for a living room. But it will keep up with air exchange on a rainy day.

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thanks, I have a carbon fan and filter