Losing battle with humidity - lung room/tent issue

TimewasterOG

Active Member
Let's talk to boveda they shall make us some 40% and 45% RH packs that fit under a growtable.
:rolleyes:
I was actually just looking at desiccant options for a tent….they make bags for hanging in sea cans - I was pondering if they (or something like ie: fabric bags of calcium carbonate, or silica, clay…?) might help cut my energy costs. There is a company called sorbent systems who has some stuff called molecular seive that claims to get small spaces up to 160 sq ft down as low as 20% - don’t want that low but you see the idea
 

TimewasterOG

Active Member
You have to have so many cfm per carbon filter, silencer so many feet of ducting etc etc …that 6 inch isn’t sufficient for a 8 inch….the carbon filter and other accessories adds a lot to the cfm needed to exhaust the tent

but right idea for planning to expand in the futre

it wouldn’t be hard at all man make sure you have no light leaks…it’s easy to get spikes in a tent vs room more stable and controlled imo
I can’t stop thinking about this - do you run an 8” fan in a 5x5 tent?
was looking at the numbers and the 6” can move 402cfm - tent is only like 175 so even with the filter (and the 8” is causing less than the normal 25% reduction) and the couple of bends I still must be circulating a little quicker than every minute.
Does anyone else run an 8” for a 5x5 tent?
 

FlowerPower88

Well-Known Member
I’ve been dealing with the same, and to add insult to injury brought home powdery mildew this fall, either from outdoor crop, or taking in new genetics. I bought the biggest tank of a residential 800W compressor dehu and I have had to put it in the actual 5x5 to keep humidity between 30-40%, and that is with a ceramic space heater with a fan cooking the air outside the tent and blowing it into the lower intake screen. I’m starting to realize that the battle with humidity in a tent is too much if you really want to yield the space. So what would you recommend for a dehu in a medium sized hard build out (roughly 25x10)? I see the quest units and they are nice, but that is for investor money, not the dude building his own rooms, at those prices. Will the industrial dehu’s at a fraction of the price deliver the same performance?
 

Southernontariogrower

Well-Known Member
How many fans you got in 5x5? Air movement very important or you get microclimates. Do even with ample airflow at times. A strong fan might just sort your issues out somewhat. My guess! Opening tent wouldn't hurt.
 

TimewasterOG

Active Member
I’ve been dealing with the same, and to add insult to injury brought home powdery mildew this fall, either from outdoor crop, or taking in new genetics. I bought the biggest tank of a residential 800W compressor dehu and I have had to put it in the actual 5x5 to keep humidity between 30-40%, and that is with a ceramic space heater with a fan cooking the air outside the tent and blowing it into the lower intake screen. I’m starting to realize that the battle with humidity in a tent is too much if you really want to yield the space. So what would you recommend for a dehu in a medium sized hard build out (roughly 25x10)? I see the quest units and they are nice, but that is for investor money, not the dude building his own rooms, at those prices. Will the industrial dehu’s at a fraction of the price deliver the same performance?
I hate that PM for you! Have you got that sorted? There’s a number of pretty good ways to kick that (oddly enough, skim milk for outside is fantastic - but I’m not sure if I do or lights will activate the enzymes like the sun does).
I too had the dehuey in the tent for a bit, but heat was too much and the rh bounced back and forth too much. we dropped from 100% rh outside and things got easier for a couple days…. But now back to 100% and I now have both the 50pt and 30pt running - just rhe 30pt going (fan blowing into 4 x 6” ducts feeding the tent) and tent climbed to mid 60s even though the main room is still below 50. It’s making my brain hurt.
and I’m sorry I don’t have a great suggestion for
you - I’m looking at some built in units as a possible option.
 

TimewasterOG

Active Member
How many fans you got in 5x5? Air movement very important or you get microclimates. Do even with ample airflow at times. A strong fan might just sort your issues out somewhat. My guess! Opening tent wouldn't hurt.
Thanks for the suggestion!
I had the same thought - only had 1 regular oscillating fan on the floor (12” I’m guessing) and one that stopped oscillating hanging above the canopy and hitting the tallest branches. I figured they wasn’t enough and took the bigger fan from
my dry area to hang in there too. So now it’s 2 above and one on the floor….and I’m feeling like that’s probably still not enough
 

sh0wtime

Well-Known Member
I was actually just looking at desiccant options for a tent….they make bags for hanging in sea cans - I was pondering if they (or something like ie: fabric bags of calcium carbonate, or silica, clay…?) might help cut my energy costs. There is a company called sorbent systems who has some stuff called molecular seive that claims to get small spaces up to 160 sq ft down as low as 20% - don’t want that low but you see the idea
Interesting, silica would work I guess, you're absolutely right, you get it in hardware shipments also, in case of any moisture.
I was just joking with the boveda packs I have actually not even a clue how those work to be honest, I never used them or even seen them upclose.
:bigjoint:
 

TimewasterOG

Active Member
Interesting, silica would work I guess, you're absolutely right, you get it in hardware shipments also, in case of any moisture.
I was just joking with the boveda packs I have actually not even a clue how those work to be honest, I never used them or even seen them upclose.
:bigjoint:
They’re fantastic!! Inexpensive and I have 1 in every jar. If it’s too damp, they absorb; to dry they release to keep things in the happy zone
 

FlowerPower88

Well-Known Member
Interesting, silica would work I guess, you're absolutely right, you get it in hardware shipments also, in case of any moisture.
I was just joking with the boveda packs I have actually not even a clue how those work to be honest, I never used them or even seen them upclose.
:bigjoint:
It’s a push/pull type of thing. Pushes moisture from inside the pack to the atmosphere outside (your dry weeded jar in this case) or pulls moisture in from the overly moist atmosphere. This is good for already cured weed, but I find it can rob/impart your weeds flavor, if you cure with boveda packs in right at the start of curing.
 

J. Rocket

Well-Known Member
So if I have 90% RH in a container let's say and the pack is for 60% RH it will keep my 90% at 60% not dry it to 60%, is that what you're saying?
no, thats not what I said.
the pack is for maintaining a specific RH%.
not raising or lowering RH% (significantly).
I dont put them in the container until ive got the RH% where I want it.
 

TimewasterOG

Active Member
So I kinda gave up and have just started leaving the tent door open….it’s keeping things in a much better place. Might plan to swap the tent for veg and just set up an open room moving forward (??)
 
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