nsw3913t said:

So i have a 60x60x80 tent and my humidity is too high. I got a dehumidifier for it, will put in in the morning. Do i need to lower the intake and exhaust fans to get better results from the dehumidifier or run the fans like normal while using the dehumidifier. Or since i am using one do i lower all the fans. Thanks for your help, also if i have worded this wrong let me know so i can get to the right result. Thanks! Pls ask questions!!

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BigCube said:

It is easier to control the humidity of the room the tent is in vrs controlling the humidity in the tent itself.

As the tent take air from the room it's in and the air in the tent is replaced several times per minute, it's not in the tent long enough. Therefore you control the humidity and temperature of the room the tent is in. Also it saves you room in your tent

Good luck man!

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BigCube said:

A humidity spike on lights out is common, it only lasts a while. If you can keep your room rh around 50% you'll be ok.

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Mikedin said:

Just be careful putting a dehumidifier in your tent they blow out warm air, I put my dehu in the lung room, it raises the temp 3-4f in the room, keep a close eye on it until you see how yours does, I’m using a 50 pint 4500sq ft dehumidifier

Now I keep it in the basement in another room and run it at 50%RH. And it keeps my RH low enough in the tent and dosent raise the temp as much

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PipeCarver said:

I can rarely keep my humidity down that low. I'm lucky to get it below 60% most of the time. I don't know how we're supposed to keep the RH down when we add a ton of water to our plants to keep them alive. Watering day the RH maybe in the 50% range but water my plants and up she goes to 65%, even with dehumidifiers running 24/7 on turbo, As long as I have air moving ( I have 5 fans running 24/7 I seem to be okay......for now.

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zebracake said:

What size dehumidifier and intake/outtake fans do you have? I have a 260 watt dehumidifier that I use for early flower in my 9x5x7 tent which is just enough to keep rh at 58% lights on and 45% lights off with 10 inch in take and out take fans which are probably bigger than I need. Once I'm in late flower I gotta use a 650 watt dehumidifier which will keep me at rh 55% lights on and 45% lights off. My dehumidifiers are in my tent and they only bring down the rh by 10-15% max so I feel like the intake/outtake fans are doing most of the dehumidifying and maybe it is better to have your dehumidifier out of your tent I'll have to give it a shot.

I have a 5x5 tent too but I use it for my veg plants so I don't need a dehumidifier but if I ever used it for flowering my 260 watt dehumidifier should be enough with 6 inch in take fan and 8 inch out take with carbon filter running full power.

60% rh isn't too high during flower but you want every square inch of that canopy to be getting good airflow.

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nsw3913t said:

I was wondering if i shud lower intake and exhasut during dark tile while leaving the oscilating fan on and running the dehumidifier to try and get the humidity down during that period. Not too worried during light on time. Its running around 80 degrees and 59% right now. More worried about mold when the lights are off.

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zebracake said:

What size dehumidifier and intake/outtake fans do you have? I have a 260 watt dehumidifier that I use for early flower in my 9x5x7 tent which is just enough to keep rh at 58% lights on and 45% lights off with 10 inch in take and out take fans which are probably bigger than I need. Once I'm in late flower I gotta use a 650 watt dehumidifier which will keep me at rh 55% lights on and 45% lights off. My dehumidifiers are in my tent and they only bring down the rh by 10-15% max so I feel like the intake/outtake fans are doing most of the dehumidifying and maybe it is better to have your dehumidifier out of your tent I'll have to give it a shot.

I have a 5x5 tent too but I use it for my veg plants so I don't need a dehumidifier but if I ever used it for flowering my 260 watt dehumidifier should be enough with 6 inch in take fan and 8 inch out take with carbon filter running full power.

60% rh isn't too high during flower but you want every square inch of that canopy to be getting good airflow.

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zebracake said:

What size dehumidifier and intake/outtake fans do you have? I have a 260 watt dehumidifier that I use for early flower in my 9x5x7 tent which is just enough to keep rh at 58% lights on and 45% lights off with 10 inch in take and out take fans which are probably bigger than I need. Once I'm in late flower I gotta use a 650 watt dehumidifier which will keep me at rh 55% lights on and 45% lights off. My dehumidifiers are in my tent and they only bring down the rh by 10-15% max so I feel like the intake/outtake fans are doing most of the dehumidifying and maybe it is better to have your dehumidifier out of your tent I'll have to give it a shot.

I have a 5x5 tent too but I use it for my veg plants so I don't need a dehumidifier but if I ever used it for flowering my 260 watt dehumidifier should be enough with 6 inch in take fan and 8 inch out take with carbon filter running full power.

60% rh isn't too high during flower but you want every square inch of that canopy to be getting good airflow.

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nsw3913t said:

Hot the tent to 80f during light time and 48% humidty and 70f at dark time and 42% humidity thanks for all ur help im pretty happy w those numbers!View attachment 1277787View attachment 1277788

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PipeCarver said:

Looking healthy, that's what's important. I find when they're nice and green with everything thriving I'm a happy man....And that's whats really important

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nsw3913t said:

So a week later and i defoliated. Went conservative since its my first time lol. What do u think now? Shud i change or add anything or let em roll for a few weeks. Was thinking of adding a few more exhail bags and cal mag and few more circ fans of needed.

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