Up until now I’ve relied on a passive air intake in my 4x4 tent. My extraction fan is quite powerful and the sides of the tent billowed quit allot, so I obviously had good negative pressure. I want to bring some cooler air into the tent so have bought an in-line fan and speed controller.
Without being to technical how much negative pressure do I want i.e. do I want the sides of the tent fairly taut or is just enough to see it’s negative?
Thanks guys
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