On Tue, 09 Aug 2005 17:20:45 +0200, derekhawkins <derekhawkins@...> wrote: > >> so flushing some used etcher occaisonally will keep >> your dunny flushing;) > Even some HazMat agencies seem to recommend just that provided the > amounts are a gallon or less. Found that hard to believe at first. > The q. is if they did cosider the copper content when recmmending that or if it was just FeCl. ST
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Re: [Homebrew_PCBs] Re: FeCl2
2005-08-09 by Stefan Trethan