Negative pressure is when more air is being extracted than is coming into the tent, causing the tent walls to 'suck' inwards
Negative pressure is when more air is being extracted than is coming into the tent, causing the tent walls to 'suck' inwards
It's Not What You Know, It's What You Can Prove
British green (19-03-18), Ironman (19-03-18)
AND (28-03-18)
I have a fixed cupboard that I grow in, I only have intake & extract points. I have no vents
You direct the pressure with an extraction fan & filter!
AND (28-03-18), British green (20-03-18)
Nice info very useful
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