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  1. O

    Filter stopping negative pressure

    They are inline duct fans as far as I’m aware. From what iv read these are the style that are recommended. I know the ones you posted look like cheap Chinese shit and I never considered entertaining one. I doubt they would cool a computer tower let alone a tent Let me know what you think.im a...
  2. O

    Filter stopping negative pressure

    Yeh I’m currently in flower I did manage to get temps down quite a lot using the separate systems but still not enough for where I’m happy I’m just riding this out now I’m not expecting anything from this grow temps were fine when I’m veg but not really where I’d like them for flower I’ll just...
  3. O

    Filter stopping negative pressure

    No probs I’ll give that a go now cheers again
  4. O

    Filter stopping negative pressure

    Right ok I’ll move the filter up top I was under the impression cooler air for the hps would be better but that clears that up Your point about the fans working against each other also makes sense and highly possible that I could of had leaks in the tent from the reflector forcing more air in...
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    Filter stopping negative pressure

    Ok so iv changed things around it’s now setup as advised Room temp 21.5 Celsius or 70.7 Fahrenheit @lights off time now 18:55 All Vents closed Hps @400w Slight negative pressure, Filter at base of tent->ducting->hood->ducting—>6” fan (inside top of tent)—> ducted straight out of tent—>out of...
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    Filter stopping negative pressure

    Would you run filter at the base of the tent to bring in cool air to the hood or leave the filter at the top then through the hood iv seen it done both ways but wouldn’t the second make the hps run hotter? Also pulling air from the tip of the bulb to the socket or from the socket toward the tip...
  7. O

    Filter stopping negative pressure

    Sorry for the late reply Christmas holidays, Yup I meant inline fans sorry for the confusion one is a system air (10”) the other a vortex pro (6” I can feel air coming out of the extract when the filter isn’t connected When filter is connected I can’t I tried smoking to see which way the...
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    Filter stopping negative pressure

    First time setting a tent up started off with cheap stuff and as ran into problems iv ended up with over the top stuff with the exception of the filter that’s still cheap. Dr90 tent (90 x 90 x 185) 10” duct fan down to 5” reducer(1000m3/h?) 6” duct fan down to 5” reducer (800m3/h) Darkstar air...
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