Growing medium
Richard (Thu, 12 Jul 2012 12:37:32 PDT)

I cubic foot of drystall contains a lot of air.

-----Original Message-----
From: pbs-bounces@lists.ibiblio.org
[mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Gastil
Sent: Thursday, July 12, 2012 12:19 PM
To: pbs@lists.ibiblio.org
Subject: Re: [pbs] Growing medium

The Dry Stall website faq says it weighs 28 lbs per cubic foot.
Water weighs 1000 kg/m3 which is 62 lbs per cubic foot.
So Dry Stall should float on water.  Does it? 
If so, then Dry Stall pumice is more like the pumice I am
familiar with, 
more like Perlite than gravel.