Mau5Capades: builds & grow journal

ttystikk

ttystikk

Well-Known Member
SaltyNuts said:
@Queece it seems counter-intuitive to run 99% RH at 90F, but I guess the main danger is temperature drop and massive condensation. That's a big danger though, catastrophic. I don't know, it seems weird in a number of ways. But I suppose terrestrial plants evolved for many hundreds of millions of years under similar conditions. My experience corroborates that high temps suppress mold/mildew, as long as the conditions are maintained. It seems hard to keep a room at 90F and 99%RH, but in the right location it could be easier than keeping a room supplied with fresh air. You could really go for it with a CO2 burner during the light cycle, and a simple heater at night, without so much costly HVAC. Seems that a big challenge would be to keep the walls and ceiling hot enough so you don't get massive condensation dripping down. Way to destroy a house. But if in the right setting, if it turns out to be easier than maintaining the 72F-75F/50%-60% sweet spot (works for me), and yields more and better, then sheeeit yhea. Of course I am assuming that genetics are a major factor here, for getting desired results. But who knows, maybe an Afghani billygoat would love the Jungle. The tropical haze loves the mountain. Worth a shot.
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I'm not sure where he gets his info, but this is a VPD chart. You want to keep your growroom conditions in the green part of the chart, so read down the left to find your operating temp, then read across to the green box, then up to find the target RH at that temperature.
downloadfile.jpeg

Notice that ideal VPD DOES change with temperature. Notice also that ideal VPD never comes close to 99%. And why should it? A plant can't transpire in a steam room, so why build one for it?!

@SaltyNuts ; edited to add the chart!
 
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ttystikk

ttystikk

Well-Known Member
p4id said:
I suppose that I am weaning my self off hps rather than going cold turkey. She's been good to me since 1989 and holds a place in my heart ;-)
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I understand sentimentality. I tried the dual source thing for similar reasons. The plants were not feeling it, in the slightest.
 
Queece

Queece

Well-Known Member
ttystikk said:
Anytime RH reaches 99% in a growroom, someone fucked up.
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Look man, I posted the Medi video. You're wrong. If "someone fucked up" than why is one of the foremost educators in cannabis doing just that with colossal success? Stop, before you respond, see what Medi has to say, assess the facts, and then reply.
 
Queece

Queece

Well-Known Member
There are different VPD ratios for different plants, don't be thick. There's a much different VPD spread for an equatorial, water-loving perennial than a fucking potato, come on man use some lateral thinking.
 
SaltyNuts

SaltyNuts

Well-Known Member
90F and 99% doesn't sound good to me either. I can list why. But I am alert and curious when people like medicropper who have been documenting their work make a statement that they got 4lbs per light in the insane conditions. I can't claim it doesn't work because I haven't tried it. yes there are obvious downsides.There are so many inherent risks that even if it yields great results I wouldn't want to grow like that. But short of discussing details, fact checking, asking questions and providing data, the conversation is a non-starter.
 
a mongo frog

a mongo frog

Well-Known Member
Queece said:
There are different VPD ratios for different plants, don't be thick. There's a much different VPD spread for an equatorial, water-loving perennial than a fucking potato, come on man use some lateral thinking.
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Look you fucked up by saying 90-100 percent RH. No big deal. Stop trying to bend it in your favor. You don't even practice what your preaching your grow is a few pages back. Which is a way better garden then i thought i was going to see, but your not practicing huge RH.
 
SaltyNuts

SaltyNuts

Well-Known Member
ttystikk said:
I'm not sure where he gets his info, but this is a VPD chart. You want to keep your growroom conditions in the green part of the chart, so read down the left to find your operating temp, then read across to the green box, then up to find the target RH at that temperature.
View attachment 3617838

Notice that ideal VPD DOES change with temperature. Notice also that ideal VPD never comes close to 99%. And why should it? A plant can't transpire in a steam room, so why build one for it?!

@SaltyNuts ; edited to add the chart!
Click to expand...
I like the chart. Good visual. It sure beats the vpd calc algebra I read on the internet earlier, which quickly gave me a headache.
 
Queece

Queece

Well-Known Member
a mongo frog said:
Your not practicing huge RH. Please just stop. Fuck your not even enriching. Your throwing around stuff that your right about but its 3rd grade shit when it comes to enrichment. But your exaggerating the numbers.
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So you are just going to assert that? That's an assertion Mongo. That doesn't mean anything outside of your head.
 
Queece

Queece

Well-Known Member
Enriching? It's a $20 cool mist unit from Wal-Greens, you make it sound like I'm claiming to be some Dr. Wily character.
 
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