[pbs] perlite, pumice,
totototo at telus.net
totototo at telus.net
Wed Jul 5 12:05:15 EDT 2006
On 4 Jul 06, at 15:41, boutin wrote:
> Even out here in my rural part of California it is difficult to buy
> large bags of the coarse graded perlite. They seem to only have or
> want to deliver the so called medium, which has lots of fines in it.
The "coarse" horticultural perlite I buy has gotten much finer the
last couple of years.
BTW, a warning for those contemplating other sources: don't use
perlite sold for insulating houses; it may contain fluorides, unlike
"horticultural" perlite.
--
Rodger Whitlock
Victoria, British Columbia, Canada
Maritime Zone 8, a cool Mediterranean climate
on beautiful Vancouver Island
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