Hogro Posted August 16, 2023 Share Posted August 16, 2023 (edited) Evening all… I’ve recently came away from HPS and gone LED but since doing so I’ve had problems with airflow and can you believe it high temps / humidity (a good percentage is probably due to the current weather). Having gone for LED and having height issues with the filter above I ended up buying an in-line filter. The though behind it was to get the lights higher with it only being 2m. Since installing the in-line filter the problems have started! My usual placement was in the centre of the room but having lifted the light up I have the extract ducting at one end. My previous filter was higher flowing and get the feeling the lower capacity in-line filter teamed with the new position is the cause. Airflow exchange definitely feels like the culprit. my current options are; - old filter back in the tent but below the canopy in the centre on a frame. - old filter back in the tent but at one end lifted up below the lights but above the canopy (high as it can go). - lower the lights slightly to reposition ducting to the centre and hope the in-line filter can cope or add a dehumidifier (1st week in flower humidity at 80% and temperature around 28-29 degrees) Thanks Edited August 16, 2023 by Hogro 1 Link to comment Share on other sites More sharing options...
Military Grade Posted August 17, 2023 Share Posted August 17, 2023 Is lowering the height of the light then dimming it down the optimal PPFD an option? 1 Link to comment Share on other sites More sharing options...
Hogro Posted August 17, 2023 Author Share Posted August 17, 2023 6 hours ago, Military Grade said: Is lowering the height of the light then dimming it down the optimal PPFD an option? Unfortunately not, I’m already as low as I can be and don’t fancy dimming them if I can resolve the airflow / temperature issue with filter placement. I might have to buy a filter a size smaller but longer than my previous filter, abandon the inline filter and place above if all else fails. I might have to play around and tonight with the new positions and see how it works. Was hoping someone had the same issue and could come to the rescue Link to comment Share on other sites More sharing options...
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