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ventilation for a 4x8 ? basically is that too much negative pressure and if so should I get anther intake ?
GodOfAngerstarted grow question a year ago
currently using a 200mm inline exhaust fan that has 914 m3/h(537,9 cfm) max currently using it at its medium setting of 792 m3/h(466,15 cfm) and using a 125 mm inline intake fan with only 330 m3/h (194,23 cfm). Should I get anther intake fan or should I put the exhaust to low 680
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Scrubbyjimbobanswered grow question a year ago
I think what you got will work well, even on high. If your exhaust is hooked up to a carbon filter you're not gonna get your max efficiency on your exhaust pull. A lot of people just use passive intakes, if you're pulling air in you're probably OK. Does it sound like your exhaust fan really bogs down when under pressure or get extra loud like when a vacuum cleaner gets clogged? That would be a sign not enough is getting through.
SkunkleDamoanswered grow question a year ago
As long as you have some negative pressure you will keep aromas under control. What you have is fine. Don't stress.
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