If i'm not mistaken (probably am :D) sand blasting sand is white
sand, is it not? You can get this at garden centres, or hardware
stores (sometimes as sandbox sand) in standard 25kg bags (50lbs). What
you don't use for potting use in the kids sandbox.
TTYL, ''' Plant Science Computer Technician
Patrick Cox (o o) Nova Scotia Agricultural College
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Hofstadter's Law:
The time and effort required to complete a project are always more than
you expect, even when you take into account Hofstadter's Law.