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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
Loc: EVERY WHERE
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SGFC and RH?
#13501466 - 11/17/10 11:58 PM (13 years, 3 months ago) |
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Ok! I made a SGFC a few weeks ago, the holes where no 1/4 in but it worked fine. So........ I got another FC made, this time I used 1/4 in bit. Put in new perlite, now the RH WON'T STAY UP!
so I taped about 1/3 of the holes on all sides. The RH went up but not like it was with the smaller holes( it goes up does good than just starts to suck ass)
Should I cover more holes on the bottom and sides to see if that helps? Or should I go back to the small holes?( the reason I used the 1/4 in this time was cuz I found the bit and thats what the tek called for)
Please help!!
Ps: it's getting colder outside but there is a heater in the room
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google
Not Stranger



Registered: 05/03/10
Posts: 214
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I have had the same problem. I just added a ton more perlite. That did the trick.
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Javadog
Continuing along


Registered: 05/03/10
Posts: 7,385
Loc: USA
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Blocking holes is not the solution, as this will hamper air flow which is critical for a SGFC to work.
Good luck!
JD
-------------------- Boyd Rice told my brother that life is a corny pack of freesakes Myco-tek.org
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Re: SGFC and RH? [Re: google]
#13501510 - 11/18/10 12:12 AM (13 years, 3 months ago) |
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I thought about that bit have only got enough for the other FC. Maybe I will add a little more to this one and tape like 1/2 the holes on the other one. Thanks for the tip!
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Re: SGFC and RH? [Re: Javadog]
#13501519 - 11/18/10 12:14 AM (13 years, 3 months ago) |
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Quote:
Javadog said: Blocking holes is not the solution, as this will hamper air flow which is critical for a SGFC to work.
Good luck!
JD
The first one had like a million holes cuz they where smaller but I didn't redrill all of them. It worked fine with the smaller ones. How can I get it up if I can't tape some holes? It went up like 30% when I taped a few. Should I take the tape off????
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google
Not Stranger



Registered: 05/03/10
Posts: 214
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I have not tried this so I don't know if it will work, but it sounds like it should:
Put like a box or something to take up a lot of space (volume) on the bottom and cover it with the perlite. This will be like adding more perlite. This will not hamper air flow and because of less free air space will raise the humidity.
P.S. Preferably something made of non rusting metal or plastic, not paper or wood.
Edited by google (11/18/10 12:47 AM)
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ShadOWCrack
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Registered: 07/18/10
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Re: SGFC and RH? [Re: google]
#13501657 - 11/18/10 12:47 AM (13 years, 3 months ago) |
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Cool
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ShadOWCrack
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I added more perlite and took the tape off. RH went up but it's not where I want it. Maybe I will add more perlite in a few days when I can get some. The only place that has it in by bags is almost $40.00 ( I don't thank so) Thanks for da help
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bourndead
Down to Earth by Default


Registered: 07/06/10
Posts: 1,030
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What's your ambient rH like? I've been seeing a lot of Cool Mist Humidifiers on sale in my area, could you not just run one in your grow area? Evaporation of moisture from the sub by means of FAE is the number one pinning trigger which is why it's not recommended to tape/close off any holes in a 'properly constructed' SGFC. Keeping the rH up at the expense of FAE will only hinder your results, ime, and give you less than desirable fruits (skinny, small capped, co2 choked fruits.)
-------------------- "I don't have a God complex, you've got a simple God"
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Yeah I put more perlite in the SG. The ARH is 38% outside , but is around 65% in the room. It's getting pretty cold here now. Could it be because the perlite is almost 4 wks old? The other SGFC I made is keeping a higher RH. When I first made it, it would stay 100% non-stop. There both 84-85% now. That's about as high as they get. Oh the ARH is around 60% in the room(a lil lower @ night Thanks for the reply
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bourndead
Down to Earth by Default


Registered: 07/06/10
Posts: 1,030
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With ~40%+ ambient rH you should have no problem achieving the desired rH in a properly constructed SGFC, and by properly constructed I also mean the depth of perlite within. I manage to keep the rH in my SG at 95%+ with just 3.5" of perlite for at least 1 flush, this is with an ambient rH of ~40%.
Rehydrate the perlite, drain properly and check the rH in the FC again, or check/calibrate your hygrometer.
As far as temps and rH dipping slightly at night, thats not really a huge deal. Think about mushrooms growing in the wild, typically the temp drops up to 10-15f at night outside with the rH dropping a good 10-20% and mushrooms still thrive. If you're worried about excessive drying due to these dips then just compensate by a heavier mist before bed or something.
-------------------- "I don't have a God complex, you've got a simple God"
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
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Ok thanks for the info. Maybe iam just tripping. I mist heavy before I go to bed I believe there's a lil more than 3 in in there. I have a cheap ele and an analog one. They both stay +\- 1% when I made the first one the RH stayed @ 100% but the holes where smaller. I will add more perlite Monday, maybe I will look into a cool mist or something similar. Someone said a reptile fogger, but haven't looked them up yet. Thanks for the time of the info.
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Doc_T
Random Dude




Registered: 03/06/09
Posts: 42,395
Loc: Colorado
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pics of fc?
-------------------- You make it all possible. Doesn't it feel good?
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Re: SGFC and RH? [Re: Doc_T]
#13504564 - 11/18/10 03:58 PM (13 years, 3 months ago) |
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I have to do s few things. I will post when I get back Thanks doc
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Re: SGFC and RH? [Re: Doc_T]
#13506884 - 11/18/10 11:22 PM (13 years, 3 months ago) |
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Quote:
Doc_T said: pics of fc?
Iam working on the uploads now doc, there be here in just a min
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ShadOWCrack
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Registered: 07/18/10
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ok this is the first one i made (it had smaller holes but i have drilled them to 1/4 in in them now) ::
  
this is the second one i made the same as the first one except i went with 1/4in the first time)::

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Doc_T
Random Dude




Registered: 03/06/09
Posts: 42,395
Loc: Colorado
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Well you don't have 4-5 inches of perlite, for starters.
-------------------- You make it all possible. Doesn't it feel good?
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Re: SGFC and RH? [Re: Doc_T]
#13507112 - 11/19/10 12:22 AM (13 years, 3 months ago) |
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Quote:
Doc_T said: Well you don't have 4-5 inches of perlite, for starters.
its 4 in in one and like an 1/8 under on the other. i will out more in them on monday iam trying to find perlite thats not over 40 a bag i know its cheaper than that
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Doc_T
Random Dude




Registered: 03/06/09
Posts: 42,395
Loc: Colorado
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Well then your holes are like 4 inches apart. Get out a tape measure and check what you've got going on. No way that thing is built to spec.
-------------------- You make it all possible. Doesn't it feel good?
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ShadOWCrack
~~~LOOKING DOWN THE SCOPE~~~




Registered: 07/18/10
Posts: 8,139
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Re: SGFC and RH? [Re: Doc_T]
#13507238 - 11/19/10 12:54 AM (13 years, 3 months ago) |
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My bad I was talking about the perlite being 4 in. Sorry for the misinfo!
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