Hank Murrow on tue 6 apr 04
Dear Susan;
Draw rings, or draw trials, are coils of clay with the bottoms
flattened somewhat so they may stand in a row behind your spyhole. You
reach in with a rod of steel or stainless steel and withdraw them one
at a time until you are satisfied that the clay has received enough
soda/glaze buildup. In regular gas firings, they may be used to
determine the best temperature for crystal growth. Works a charm.
Cheers, Hank
On Apr 5, 2004, at 10:03 PM, Susan Setley wrote:
>
> I am no expert on this and don't know what "draw rings" are, but it
> has been
> our experience that over time, the soda kiln has somewhat of a soda
> atmosphere
> throughout the firings because of the buildup of soda residue on walls
> of the
> kiln.
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