Blackketch
Well-Known Member
You are absolutely right, also because in addition to health problems I would not want to create damage to the house itself....
Any tips for lowering humidity? Need help
- Thread starter Blackketch
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- dehumidifier heat humidity
Blue brother
Well-Known Member
I keep my humidity at 65 right up until week 6 on a 9 week strain, the plants like it just make sure ur vpd is on point and have loads of air circulation, maybe defoliate so there’s not as many leaves touching leaves which will allow air to be moved through the canopy better. Increasing temperature drops rh as rh is relative to temperature but I understand that this may not be possible.
Blackketch
Well-Known Member
I already have one but the heat insulation pretty much goes to hell...I'm trying to see something stiffer that will let as little air through as possible but I'd have to twist everything up by putting the carbon filter inside the box and it won't fit with the two lamps
Blackketch
Well-Known Member
Right now it would also be fine at 65% and the vpd is almost okay since I tried to increase the temperature but I worry about when I'm in full bloom. i've had serious humidity problems during bloom in the past and it was a nightmare
Learning1234
Well-Known Member
You said it gets freezing when you run the a/c on dehumidifier mode, but drops the rh, so run the a/c on dehumidify and buy a space heater to get the temps up. The heater will lower the rh as well. Best of luck!
You have a good plan but sounds like product will be expensive.
Blue brother
Well-Known Member
Okay mate i don’t wanna push you to do something you’re not comfortable with, a clean grow room won’t breed mold like a carpet or curtains in the room you are cycling the wet air through, a window vent or disused chimney would be the best bet, try not to exhaust wet air into the room that you’re also intaking from. Those are my only suggestions I’m afraid, good luck sorting this out mate.
oldsilvertip55
Well-Known Member
Run the salt thru the oven to pull moisture off?I think you’re on the right track with building a small room to limit the size of the microclimate you’re trying to create. Itl make your dehumidifier more efficient. I’ve actually read about large blocks of salt being used in meat curing chambers to help absorb water and keep humidity at the proper level. Im curious if this would help to buffer a humid environment? A big ass bag of salt is really cheap at a local restaurant supply store. Maybe just stick one in the corner of that mini room/tent and see if it helps any. Bonus, salt never really expires so it’s a lifetime supply .
Salt is a good drying agent. One time I put a bunch of leftover rock salt in an open top 5 gallon bucket then put the bucket into the basement for storage. Later I noticed the bucket did have water and the salt was slushy. I don't know how long it took for the salt to pull the water. This was done on accident.
Blackketch
Well-Known Member
Sorry for the delay guys but I had totally forgotten to respond. I thank you for the advice brother, with the mini room I built I was able to get it down to 60% and cyclically for a few hours I turn on the air conditioning dehumidifier and even though it lowers the temperatures a little bit it gets me to 55%.
Now we'll see how it goes over the next few weeks but if it gets worse again I'll be forced to buy a new dehumidifier ,although at the moment that would be a big problem for me, because this one although it cost me so much has been working for 2 years and has been on almost all the time and even if I do maintenance I'm afraid that's also why it can't handle the humidity well. Or anyway I will put them iniseme in operation
Blackketch
Well-Known Member
I will definitely give it a try!
Blackketch
Well-Known Member
I'm going to try as others have already recommended and get a bunch of salt and put it inside a nice bucket and see what happens!
bubblescrogs
Well-Known Member
Put the dehumidifier in the tent. I don’t vent outside either and it’s stable at 45% with a lot of plant matter and external humidity. If your humidifier has an external drain, run a hose to a bigger container like a Jerry can.
Blackketch
Well-Known Member
I had put it inside but the situation didn't improve and now I tried putting it outside the box but still inside the chamber I created... it improved the situation but nothing seems not to hold enough! But how are you with negative pressure or air recirculation? Do you keep everything on 24h or do you change the air every few? Because in my case the dehumidifier inside does very little (also in terms of temperatures also because I remember that in the other house if I put it inside the temperatures would go up a lot) and I think the negative pressure doesn't help me since it always seems to put in the surrounding humid air inside the box! I was thinking that the dehumidifier is now worn out from heavy use also because I can't explain why the temperatures don't rise hardly at all when it is supposed to warm the air much more
bubblescrogs
Well-Known Member
Extraction fan runs 24/7 and so does the dehumidifier but set to 45%. I have the outlet of the dehumidifier blowing straight into the extraction duct. I’ve only got it in a 3x3 so you might need a bigger dehumidifier? I empty about 10L out of it each day and it hold steady. Humidity jumps to 90% in about 2 mins if I switch it off
