Humidity question.

[IndooorGardnerOhio]

Ok, so How much does the pot and the Soil typically raise the humidity in a 31x32x63 tent? I have 2 humidifers going in it right now and its only reading 52.7% lights off with just the air in and out fans running.

Would 52.7%Rh be good enough to grow Autos? I do not want to screw this up because i cant get the humidity up.

 

[Delps8]

Dunno why the ? about "autos". It's just a hybrid that's been tweaked to go into flower on its own timetable. It's cannabis.

53 is a bit dry. In veg, 60% is "ideal".

Truth be told, the real thing to look at is temperature + relative humidity which are rolled into one number called vapor pressure defect or "VPD". VPD is akin to the "feels like" temperature for humans.

Oh yeh, you're from Ohio. If you're in south OH, you've run into humidity*. Not as bad as, say, Florida but roll back to what it's like at 80° and 80%. That sucks. That's because at 80° + 80%, sweat doesn't evaporate, it rolls off you and you feel sticky. But drop the humidity to, say, 40% and it feels a lot better because perspiration can evaporate.

Plants are impacted in a similar way - when it's 80+80 (warm and humid) plants can't give off moisture like they can when it's 80° and, say, 50%. That's tough on a plant because if they don't sweat ("transpire") they can't cool off but they also can't take up nutes.

Just like humans, 75° and maybe 60% is pretty comfortable. 80° is hotter but it will feel pretty OK if RH is, say, 55%. So it's the combination of the two numbers that matters. VPD is the "feels like" number but for plants.

53 is a little dry. Most times you'll want to be at 60% in veg but, as long as your temperature is say, 70's to low 80's, your plants will be in the "feels good" zone. That's called having VPD "in range".

You might want to jump into VPD but there's no need to do so. People grow great weed without knowing about VPD. OTOH, if keep VPD in range, by adjusting temp and/or RH you will, over the long haul, get better results from your grows. You'll tend to have less hassle during the grow and your crops will tend to come out better but it is one more thing to deal with.

And autos are the same as photos in this respect - like they are in the vast majority of areas.

This graphic might be helpful in setting up your grow environment. I used it as a check list because it helped make sense of it all but it also helped me get to the point where I don't have to do much with my plants. It takes a few grows to get things nailed down but, after that, you should to not have to d*ck with things very much and just let the plants do what they know how to do.






*I was stationed at Ft. Knox and I learned about the Ohio Valley humidity first hand. It could really suck.

 

[Delps8]

Heh, I saw that the move to restrict home growing in OH got shot down. Good to see!

 

[MtRainDog]

Watering a tightly packed tent will raise humidity a little. I'm at the mercy of my ambient humidity, which is around 30% this time of year. I don't own a humidifier, and I'm still growing fine dope here. Not disagreeing with the whole VPD thing, but you're perfectly fine at 50% there.

 

[IndooorGardnerOhio]

Dunno why the ? about "autos". It's just a hybrid that's been tweaked to go into flower on its own timetable. It's cannabis.

53 is a bit dry. In veg, 60% is "ideal".

Truth be told, the real thing to look at is temperature + relative humidity which are rolled into one number called vapor pressure defect or "VPD". VPD is akin to the "feels like" temperature for humans.

Oh yeh, you're from Ohio. If you're in south OH, you've run into humidity*. Not as bad as, say, Florida but roll back to what it's like at 80° and 80%. That sucks. That's because at 80° + 80%, sweat doesn't evaporate, it rolls off you and you feel sticky. But drop the humidity to, say, 40% and it feels a lot better because perspiration can evaporate.

Plants are impacted in a similar way - when it's 80+80 (warm and humid) plants can't give off moisture like they can when it's 80° and, say, 50%. That's tough on a plant because if they don't sweat ("transpire") they can't cool off but they also can't take up nutes.

Just like humans, 75° and maybe 60% is pretty comfortable. 80° is hotter but it will feel pretty OK if RH is, say, 55%. So it's the combination of the two numbers that matters. VPD is the "feels like" number but for plants.

53 is a little dry. Most times you'll want to be at 60% in veg but, as long as your temperature is say, 70's to low 80's, your plants will be in the "feels good" zone. That's called having VPD "in range".

You might want to jump into VPD but there's no need to do so. People grow great weed without knowing about VPD. OTOH, if keep VPD in range, by adjusting temp and/or RH you will, over the long haul, get better results from your grows. You'll tend to have less hassle during the grow and your crops will tend to come out better but it is one more thing to deal with.

And autos are the same as photos in this respect - like they are in the vast majority of areas.

This graphic might be helpful in setting up your grow environment. I used it as a check list because it helped make sense of it all but it also helped me get to the point where I don't have to do much with my plants. It takes a few grows to get things nailed down but, after that, you should to not have to d*ck with things very much and just let the plants do what they know how to do.


View attachment 5350101



*I was stationed at Ft. Knox and I learned about the Ohio Valley humidity first hand. It could really suck.

Tent is sitting at 77.5 degrees and 54.2Rh with 2 humidifiers running in it right now. Im in Northern Ohio, summer is Hot and Humid, winter is cold and dry. I was Stationed at Ft Benning Hooah

 

[IndooorGardnerOhio]

Heh, I saw that the move to restrict home growing in OH got shot down. Good to see!

There are still SOME changes coming but not as severe as the original bill was, Tax rate up to 15% from 10%, down from 12 plants to 6, etc

 

[IndooorGardnerOhio]

Watering a tightly packed tent will raise humidity a little. I'm at the mercy of my ambient humidity, which is around 30% this time of year. I don't own a humidifier, and I'm still growing fine dope here. Not disagreeing with the whole VPD thing, but you're perfectly fine at 50% there.

Good to know, Im setting at 77.5 degrees and 54.2 Rh it came up some with 2 humidifiers running in the tent lol

 

[Blue_Focus]

Ok, so How much does the pot and the Soil typically raise the humidity in a 31x32x63 tent? I have 2 humidifers going in it right now and its only reading 52.7% lights off with just the air in and out fans running.

Would 52.7%Rh be good enough to grow Autos? I do not want to screw this up because i cant get the humidity up.

If I keep my in/out fan running all the time my humidity drops. If I don't run it my humidity climbs up pretty quickly up to around 80% in my 24 x 24 x 56 tent.

I plan on getting one of these to keep my humidity in check.

 

[Fangthane]

Looks to be a fairly hi-tech solution. As much of a techie type as I've been, I find myself not really liking complicated gadgetry for growing. Plugging your exhaust fan into a simple inline rheostat would let you play around with speed, hopefully finding a happy medium where you get decent air exchange without pulling all your humidity out quickly. Guess I seem to prefer lo-tech options for some odd reason.

 

[Delps8]

Tent is sitting at 77.5 degrees and 54.2Rh with 2 humidifiers running in it right now. Im in Northern Ohio, summer is Hot and Humid, winter is cold and dry. I was Stationed at Ft Benning Hooah

Hooah! back!
You were 11Bravo - tough MF'r you are!
I was 13A2P (mustang) so I got to visit Benning once for jump school and back again to Benning School for Boys. Pushed down Georgia a lot.
I don't miss 80 and 80 — I live 12 miles from the Pacific in SoCal.
You re-upped or one and done?

Check out this VPD chart. VPD should be lower in seedling (0.8 ), increasing in veg (1.0), and then 1.2± in flower. If you're in veg, 78 and 54 is about 1.2 which is a little high for veg. Your plants are going to be transpiring a little more than optimal, meaning they'll be taking up more water than usual. Keep an eye out for nute issues because nutes come along with the water.

 

[Blue_Focus]

Looks to be a fairly hi-tech solution. As much of a techie type as I've been, I find myself not really liking complicated gadgetry for growing. Plugging your exhaust fan into a simple inline rheostat would let you play around with speed, hopefully finding a happy medium where you get decent air exchange without pulling all your humidity out quickly. Guess I seem to prefer lo-tech options for some odd reason.

What I posted isn't all that high tech. I watched a YouTube video on it and it looks easy to set.

 

[Fangthane]

When compared to a simple dial, it kinda is. Hope it works out for you.

 

[Blue_Focus]

When compared to a simple dial, it kinda is. Hope it works out for you.

I don't know if there is a 120v biscuit fan controller available. That is what kind of fan I use. At 110 CFM it's too strong for my little tent.

 

[Fangthane]

I was thinking something along these lines.

Amazon.com

 

[Blue_Focus]

When compared to a simple dial, it kinda is. Hope it works out for you.

I just found this. It's designed to work with my fan. My muffin fan is AC Infinity.

And it's only about $14. Thanks for making me look it up.

 

[IndooorGardnerOhio]

Hooah! back!
You were 11Bravo - tough MF'r you are!
I was 13A2P (mustang) so I got to visit Benning once for jump school and back again to Benning School for Boys. Pushed down Georgia a lot.
I don't miss 80 and 80 — I live 12 miles from the Pacific in SoCal.
You re-upped or one and done?

Check out this VPD chart. VPD should be lower in seedling (0.8 ), increasing in veg (1.0), and then 1.2± in flower. If you're in veg, 78 and 54 is about 1.2 which is a little high for veg. Your plants are going to be transpiring a little more than optimal, meaning they'll be taking up more water than usual. Keep an eye out for nute issues because nutes come along with the water.

I was Week 9(ISH i was in back in 98 forgot a lot since then lol)Jacked my knee to hell and back on the march to Malone 10, and Sadly got washed out medically, I was planning on staying till dead or retirement age which ever happened first lol. Worst part is, Went in the Navy in 2000 after a Knee surgery, and Jacked the fuck outta my achillies tendon(23 micro tears) and got medically washed out a second time. Mind was willing body kept breaking lmao. For the record, Mustangs are the only fucking officers worth a damn! Fuck those idiots from west point, dont know their ass from a hole in the ground.

 

[Delps8]

I was Week 9(ISH i was in back in 98 forgot a lot since then lol)Jacked my knee to hell and back on the march to Malone 10, and Sadly got washed out medically, I was planning on staying till dead or retirement age which ever happened first lol. Worst part is, Went in the Navy in 2000 after a Knee surgery, and Jacked the fuck outta my achillies tendon(23 micro tears) and got medically washed out a second time. Mind was willing body kept breaking lmao. For the record, Mustangs are the only fucking officers worth a damn! Fuck those idiots from west point, dont know their ass from a hole in the ground.

Ouch and double ouch. The knee's bad enough but the Achilles, too? One of my hobbies is running and so the Achilles is something to always aware of. But to tear it. Ugh. No. Surgery or rest?

I checked out Malone 10. Looks like it's a bit southwest of BFE. One thing about infinity i

The pisser is that you were willing to devote yourself to it and didn't get to. I hope you things got patched. It's not uncommon for growers to be vets who really do grow for medical purposes.

Mustang vs "ring knockers" - I got to see both sides of the issues as an E3-E5 and then O1 and O2. My time as a soldier helped when I was leading soldiers. Funny that. Great camaraderie and synergy and it was based respect them as men and soldiers.

The ring knockers had no idea how to do that. A few of them got it but, most of the officers I served with could not have done well when things got tough. I was in Grenada as an EM so I had some taste of it but those kids were clueless.

Some of the West Pointers turned their nose up at me because I was prior enlisted. I was pretty tight with the NCO's and soldiers so, yes games were played. A lot of it is that they were just young but there was a core group who were just assholes.

 

[IndooorGardnerOhio]

Ouch and double ouch. The knee's bad enough but the Achilles, too? One of my hobbies is running and so the Achilles is something to always aware of. But to tear it. Ugh. No. Surgery or rest?

I checked out Malone 10. Looks like it's a bit southwest of BFE. One thing about infinity i

The pisser is that you were willing to devote yourself to it and didn't get to. I hope you things got patched. It's not uncommon for growers to be vets who really do grow for medical purposes.

Mustang vs "ring knockers" - I got to see both sides of the issues as an E3-E5 and then O1 and O2. My time as a soldier helped when I was leading soldiers. Funny that. Great camaraderie and synergy and it was based respect them as men and soldiers.

The ring knockers had no idea how to do that. A few of them got it but, most of the officers I served with could not have done well when things got tough. I was in Grenada as an EM so I had some taste of it but those kids were clueless.

Some of the West Pointers turned their nose up at me because I was prior enlisted. I was pretty tight with the NCO's and soldiers so, yes games were played. A lot of it is that they were just young but there was a core group who were just assholes.

Well, Luckly for me, the tendon didnt tear all the way through, think Frayed Rope, and according to the navy doc, it would heal on its own as long as i stopped training, if i had kept going it could have tore all the way through. Ill be honest, I could not stand a single one of the ring knockers i had to deal with, but the Mustangs i got along great with, ring knockers came off to me exactly the same way the preppy rich kids did in high school lol. Stuck up, spoiled and entitled as fuck. Oh ya for sure, I am growing 100% to medicate pain. Personally, I hated the running and exercise in general, should went Air Force LMAO, I have never been a work out guy, Prolly why I broke, I went from couch potato to high intensity training with no adjustment period for the body to get used to working out.

 

[curious2garden]

should went Air Force LMAO

I think it's the job you end up doing. My husband is USAF Retired. I grow for him, hunt and breed pain relief strains for the pain he's in. Welcome to RIU.

 

[Delps8]

Well, Luckly for me, the tendon didnt tear all the way through, think Frayed Rope, and according to the navy doc, it would heal on its own as long as i stopped training, if i had kept going it could have tore all the way through. Ill be honest, I could not stand a single one of the ring knockers i had to deal with, but the Mustangs i got along great with, ring knockers came off to me exactly the same way the preppy rich kids did in high school lol. Stuck up, spoiled and entitled as fuck. Oh ya for sure, I am growing 100% to medicate pain. Personally, I hated the running and exercise in general, should went Air Force LMAO, I have never been a work out guy, Prolly why I broke, I went from couch potato to high intensity training with no adjustment period for the body to get used to working out.

Glad the Achilles held up. My gym teacher in first year of HS ripped his. It had to be sewn back together.
Re. WooPoo - the word "Biff" came to mind, you know the stereo type. Yeh they can be assholes and, due to the command structure, even a lowly O1 can mess with probably almost any E5 and below. By E6, most of them would have the chops to deal with an O1/O2. And Top can make life hell…for anyone.

"Oh ya for sure, I am growing 100% to medicate pain." - Got it. I'm fortunate that all the stuff that's been ripped, torn, and broken has healed. I even managed to dodge the bullet and I had a heart attack that had zero muscle damage. Dodged that big bullet and got the tubes cleaned out via stents.

And, you know what, we sound like a buncha old couts (I've got 20 years on you)! It's funny to meet up with people I've known for decades at conferences and, now that we're in our 60's, the conversation turns to stuff like "Oh, I had a bypass two years ago…". For me, I'm just glad I made it this far.

One last thing - "Air Force gloves" AKA pockets. Yeh, the AF is the way to go for a lot of people. Much less physically demanding and, like we used say at Ft.Bragg, we need them to drive us to work!

Gotta get of the couch and poke my nose into the tent. I figured out an easy way to get a water gauge in my res and I want to try it out.