Terry385
Well-Known Member
i was thinking was the cold only on the old top leaves fans blowing 24 hr right there
Bubba pain in the ass from seed
Night humidity at 80%!:o
- Thread starter brodietheconeking
- Start date
Bubba pain in the ass from seed
brodietheconeking
Well-Known Member
Wat do you mean from my intake? Cause I kept my outake on overnight and my humidity was still sky high,lights off now they been dark for 1 hour exhaust still running and it's at 58% already from 35% just checked..
nomofatum
Well-Known Member
Lets make this simple as possible, where is the cold air coming from? I assume you don't keep your home at below 60f, even at night? How is the plant getting air that is colder than the air in your house? Either you have an intake from cold outdoor air or your exhaust to outdoors may be letting air in when the fan is not on. If your intake is indoor air it should be between 60f and 72f I would think? Explain to us where the cold is coming from, the cold is what is making your RH rocket up anyway.
brodietheconeking
Well-Known Member
Yes I pull from outside but I didn't think that much cold get in still with it off..And if I altered that I would have very high temps with lights on ; (
nomofatum
Well-Known Member
You need a flap on the exhaust like a dryer vent has, gravity holds it closed so air can't flow in, but airflow will push it out of the way for exhausting.
brodietheconeking
Well-Known Member
Well I switched my light period round so my lights been of during the day now I just have high humidity during the day hasn't changed a thing argggg
Flaming Pie
Well-Known Member
stop pulling in outside air. Boom!
Your welcome.
Your welcome.
Greenhouse;save
Well-Known Member
My exact thought pull the air in
from your bedroom .......simple....defo not rocket science.....if not the bedroom punch into the loft that's wot I do In my garage.......works perfect with a 2kw heater with thermostat to keep temps in check .....why do people always look for the hardest ways to do things when common sense is all that's needed.....
from your bedroom .......simple....defo not rocket science.....if not the bedroom punch into the loft that's wot I do In my garage.......works perfect with a 2kw heater with thermostat to keep temps in check .....why do people always look for the hardest ways to do things when common sense is all that's needed.....
nomofatum
Well-Known Member
Exchange more air, and if the humidity is only high with lights off that is a result of the temp drop and no/little venting. 40% RH air at 75f will be >60% RH after a 15f temp drop, just keep the air moving and this won't be a problem. Intake has to have have low RH and temp below 75 for venting to be the solution.
Otherwise you are stuck with AC/Dehumidifier or a DIY solution (cold water running through radiator, water will drip from it, you can route to drain or rez or whatever.).
ebcrew
Well-Known Member
Its a closet grow humidity is at 51% and temp is at 80F
Its a CFL closet grow, so perhaps i can open the door to the closet more often, and crank the a/c a little lower?
nomofatum
Well-Known Member
You still need venting. I don't care if it's some goofy rig of regular fans or an actual duct system, you need to exchange air faster.
ebcrew
Well-Known Member
forgot to mention i do have a little fan, called 02 cool, its pumps some air out and runs 24/7