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Lucero808
 Post subject: Growbed water volume
PostPosted: Mar 26th, '09, 18:03 
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I've been looking through the site and I've found conflicting info on the ratio of growbed media to water capacity. I think the two popular numbers are 30% and 40% water volume in the growbed.
Can anyone please clarify this for cinder rock gravel (I believe you guys call it red scoria).
Thanks in advance.
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Uncle Yarra
 Post subject: Re: Growbed water volume
PostPosted: Mar 26th, '09, 18:11 
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I use red scoria, although slightly larger than most here.
My 3kL tank drops about a quarter when 2160L of GBs are full.
So that makes it about 1/2 way between your already stated percentages.
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KudaPucat
 Post subject: Re: Growbed water volume
PostPosted: Mar 26th, '09, 18:17 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
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depends on the grade of scoria. the smaller it is, the more you fit in and the less water is held.
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Dave Donley
 Post subject: Re: Growbed water volume
PostPosted: Mar 26th, '09, 21:37 
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If you measure it please add this info to the poll here:

viewtopic.php?f=8&t=2814&start=0&st=0&sk=t&sd=a
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Uncle Yarra
 Post subject: Re: Growbed water volume
PostPosted: Mar 26th, '09, 21:49 
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done dave.
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Lucero808
 Post subject: Re: Growbed water volume
PostPosted: Mar 27th, '09, 18:38 
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thanks alot. Hope I can contribute to the poll when I set up my GB's.
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