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InvisibleChibboleth
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Registered: 10/14/02
Posts: 232
bottom casing layer, or not?
    #1797976 - 08/10/03 01:22 PM (13 years, 6 months ago)

The Casing 101 tek calls for a bottom casing layer of moistened vermiculite, but I noticed that the casing FAQ indicates that a bottom layer might not be such a great idea. The person in question has used up the last of his verm preparing his 60/40, so he's considering a bottom layer of perlite or not using a bottom layer at all. Or he could always get more verm. He is a first-time caser. Advice?


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OfflineHarvestTheBrain
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Registered: 07/14/03
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Re: bottom casing layer, or not? [Re: Chibboleth]
    #1797985 - 08/10/03 01:26 PM (13 years, 6 months ago)

i think perlite would give out to much humidity for a casing, considering thats what perlite is used for...but i'm no expert, it just seems like it would make sense, i'd do verm just to be safe


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Offlineshirley knott
not my real name
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Re: bottom casing layer, or not? [Re: Chibboleth]
    #1797987 - 08/10/03 01:27 PM (13 years, 6 months ago)

like it says, up to you whether to use one or not. i don't, but that doesn't mean you shouldn't. pros and cons either way.

if you do, perlite and verm are both good choices.


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buh


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Invisibled fuNk22
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Registered: 07/12/00
Posts: 89
Re: bottom casing layer, or not? [Re: shirley knott]
    #1797991 - 08/10/03 01:29 PM (13 years, 6 months ago)

no


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InvisibleTxTec
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Registered: 12/19/02
Posts: 1,328
Re: bottom casing layer, or not? [Re: Chibboleth]
    #1798038 - 08/10/03 01:52 PM (13 years, 6 months ago)

The verm bottom layer is used to absorb moisture so no water pools up an causes problems...I have used perlite before and it did just fine. It will get dirty an you have to chunk it afterwards unless you just enjoy cleaning perlite :crazy:...go for it. :thumbup:


--------------------
I felt a warm warm breeze that melted metal and steele


Edited by TxTec (08/10/03 01:55 PM)


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Anonymous

Re: bottom casing layer, or not? [Re: Chibboleth]
    #1798181 - 08/10/03 03:04 PM (13 years, 6 months ago)

its up to you...some use it most don't....I tried a bottom casing layer my first grow and I haven't used em since(got a contam on the bottom after first flush)


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OfflineHarvestTheBrain
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Re: bottom casing layer, or not? [Re: ]
    #1798238 - 08/10/03 03:32 PM (13 years, 6 months ago)

so what did you do stupaod? just the crumbled cake on the bottom, then casing layer?


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InvisibleChibboleth
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Registered: 10/14/02
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Re: bottom casing layer, or not? [Re: HarvestTheBrain]
    #1798287 - 08/10/03 03:54 PM (13 years, 6 months ago)

He ended up using a fairly thin layer of perlite sprayed with 10:1 water and peroxide, and a 60/40 casing mix in a foil loaf pan. The whole thing's wrapped in saran-wrap and covered by a dark flannel pillowcase for opacity. Here's hoping it does well.

Good thing he went thin on the perlite though... two cakes took up much more space in the pan than he anticipated.


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Invisiblesoochi
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Re: bottom casing layer, or not? [Re: Chibboleth]
    #1798993 - 08/10/03 07:44 PM (13 years, 6 months ago)

I use it for "moisture insurance" in the event there is too much moisture (it'll sop it up) buildup of for those times you felt trigger happy with your spritzer.


--------------------
Wee, sleeket, cowran, tim'rous beastie,
O, what panic's in thy breastie!
Thou need na start awa sae hasty,
Wi' bickering brattle!


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Invisiblemicro
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Re: bottom casing layer, or not? [Re: soochi]
    #1799030 - 08/10/03 07:53 PM (13 years, 6 months ago)

Yeah -- I just put a thin layer of partially dampened vermiculite underneath; just enough to coverr the bottom so there are no holes.

--
Micro


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Any research paper or book for free
(Avatar is Maxxy, a character by Mizzyam, RIP)


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