I purchased a second hand crock pot about 2 years ago at a junk store
( Pawn Shop). I made sure that the glaze of the inner pot was not
chipped and fairly thick. Over the last two years it has been on for
most of that time on the low setting.
On the low setting it takes about 3 hours to get up to working
Temperature (70 deg C), on the high setting it takes about 1 hour to
get to about (90 deg C). The size of the Crock Pot is about 4 litres.
( I pickle lots of Castings in one hit ).
If you do purchase one make sure that the pot is a glazed ceramic
with either a ceramic or Glass lid. IN use make sure the pot has
virtually full capacity of liquid as you will burn the unit out with
a low liquid level, So try and find a small 2 Litre pot.
I have only used Sparex in the pot so I cannot tell you if it works
with other solutions, I use a ceramic basket inside the pot where I
place the items into, I do not use Stainless Steel tweezers or hooks
in the solution to pick out the castings.
But as the pot only cost me $10.00 it was worth the experiment, and I
am very pleased with the results, I am actually now looking for a
second smaller unit.
Michael W Kohlleppel.
Art Tech Castings Australia.