The American Horticultural Society Complete Guide to Water Gardening
by Peter Robison (1997) includes section on using clay for lining and
specifically gives instructions for using bentonite blankets, but alas
no brands or sources.
The source I found sells them for waterproofing foundations.
Dale

On 17 May 2003 14:51:22 GMT, ESPMER (K30a) wrote:

Dale wrote Anybody have any knowedge of bentonite blankets?

Have been on rec.ponds a number of years and this
is the first I've heard mention of it.

for use under concrete
foundations

To keep ground water from getting into the
foundation?




k30a