I do not think you understood the first time I said
this.
Most guys buying chips and boards today use refineries, and have
stopped doing the refining at home. There are still a fair number of
independents doing the chemistry in their basement, but most have
figured out that using the commercial refineries is better in many
ways.
The refineries are actually quite clean, considering the toxic nature
of the business.
Why to people sell them on ebay? instead of taking them directly to the
refineries.
/P