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Offlineghostembodied
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Registered: 10/26/15
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A couple PMP construction/conditions questions
    #22442336 - 10/27/15 09:35 PM (8 years, 3 months ago)

High!
I'm new here and attempting my first grow. I built a PMP and just tonight got my cakes rolled and placed in it. I'm excited! I'm not sure about the exact conditions I'm trying to achieve in there tho.

First, is it possible for the humidity to be too high? My digital thermometer/hygrometer says it's 68F and 99% and there's condensation all over everything in there. That's good, right? I know the temp is a little low but I don't think it's too low, is it?

Second, I didn't drill any holes in the tub. It already has some holes in the handles, which are just big enough to run the air tubes thru, and the lid isn't airtight. I figured with a 20-60gal aquarium pump pumping air into a 13gal container that enough gas would exchange without any extra holes. Does that makes sense or should I go put some more holes in it?

Thanks in advance for any knowledge anyone wants to drop on me!
:grin:


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Offlinetripdawg420
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Re: A couple PMP construction/conditions questions [Re: ghostembodied]
    #22442379 - 10/27/15 09:46 PM (8 years, 3 months ago)

why a pmp and not a sgfc :shrug:


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wbs tek
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coir tek
http://www.shroomery.org/forums/showflat.php/Number/11917410
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Invisibleinsanemike

Registered: 02/23/14
Posts: 4,272
Re: A couple PMP construction/conditions questions [Re: ghostembodied]
    #22442383 - 10/27/15 09:47 PM (8 years, 3 months ago)

FAE is more important than relative humidity. Besides, you can always mist your cakes if they start to dry out. The problem with pmp's are that they don't allow enough FAE which can lead to unhealthy looking fruits and contamination problems. Cakes do best when fruited in a properly built shotgun fruiting chamber.


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InvisiblePastywhyteMDiscord
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Re: A couple PMP construction/conditions questions [Re: insanemike]
    #22442452 - 10/27/15 10:04 PM (8 years, 3 months ago)

With constantly saturated air evaporation will not happen. Evaporation from the surface of the substrate is a pinning trigger. Often PMPs will saturate the air and substrate which inhibits pinning. PMPs are notorious for not providing enough fresh air which as mentioned above leads to sickly fruits, poor pinsets, and contam issues. Passive fruiting systems are far more forgiving than automated ones.


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InvisibleMad Season
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Re: A couple PMP construction/conditions questions [Re: Pastywhyte]
    #22442595 - 10/27/15 10:49 PM (8 years, 3 months ago)



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Offlinetripdawg420
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Re: A couple PMP construction/conditions questions [Re: Mad Season]
    #22442607 - 10/27/15 10:52 PM (8 years, 3 months ago)



--------------------
HUSTLER
How U Survive This Life Everyday Resourcefully
epic GT mono tub
http://www.shroomery.org/forums/showflat.php/Number/17277772

wbs tek
http://www.shroomery.org/forums/showflat.php/Number/11525679
coir tek
http://www.shroomery.org/forums/showflat.php/Number/11917410
results :thumbup:


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Offlineghostembodied
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Registered: 10/26/15
Posts: 37
Last seen: 6 years, 2 months
Re: A couple PMP construction/conditions questions [Re: tripdawg420]
    #22443408 - 10/28/15 05:37 AM (8 years, 3 months ago)

Wow. I wish I had known all this beforehand. The whole reason I did the PMP is that I was under the impression from reading around here that they provided more fresh air (due to the pump) and could left unattended for a few days. I thought the shotgun style was the outdated one. Damn.

So, more holes then? What if I took the top completely off?


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Offlinetetherface
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Re: A couple PMP construction/conditions questions [Re: ghostembodied]
    #22443618 - 10/28/15 07:34 AM (8 years, 3 months ago)

you want to leave the top on it. read up on those links above and make it a sgfc to spec and it will save you a lot of headaches and for future reference when UTSF refine your search to include only posts from the last few years so you don't get outdated info don't get me wrong the old stuff can be good too but you need to take some advice with a grain of salt:shrug:


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Offlineghostembodied
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Re: A couple PMP construction/conditions questions [Re: tetherface]
    #22449248 - 10/29/15 01:25 PM (8 years, 3 months ago)

The SGFC requires misting multiple times a day, doesn't it? I noticed in the videos when they built it they drilled holes in the bottom too so it obviously wouldn't hold any water. What happens if you have to be out of town for a few days?


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Offlinespacechildo
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Registered: 01/24/13
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Re: A couple PMP construction/conditions questions [Re: ghostembodied]
    #22449291 - 10/29/15 01:37 PM (8 years, 3 months ago)

you mist before you leave, and then when you come home.
denying them the conditions they want is not a good option.


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InvisibleMad Season
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Re: A couple PMP construction/conditions questions [Re: ghostembodied]
    #22449309 - 10/29/15 01:43 PM (8 years, 3 months ago)

If you had to go for a few days just extend the consolidation time, and fruit when you get back :smile:. If you've already had a flush or 2, I guess you can leave it in the chamber, or just bury them in the backyard. Orrr hit up monotubs!! :awesomenod:


--------------------
contam and car window art
How to shroomery like a pro! (Seriously, everyone read this!)
Improve your sterile techniques! (A comprehensive guide to agar)
Links upon links of literally EVERYTHING UP TO DATE

AMU Q&A
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced.


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