Homebrew PCBs

Wuh! didn't see that coming (sarc)- I'm going to leave this alone but
for adding that I am disappointed to read much of the response- not
for the sake of others opinions but their content! I think the reasons
would be apparent-- wow. jd 


--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> On 6/27/07, timbomcnuckle <jaydag71@...> wrote:
> > "> How do you deal with excess etchant?
> >
> > Pour it down the lavatory."
> >
> > >>>>WHAT??!! That has got to be the stupidest thing I have heard of
> > late!! DISREGARD that part at least!! bottle (not re-bottle) the
> > leftovers and PAY for its disposal like everyone else has to do!! no
> > wonder things are so polluted with this kind of thought
> > process.....not to mention you will be calling over the plumber sooner
> > than later, ha ha, good on you! geez.....
> 
> You are replying to the wrong thread (the one you need is "Etching
> Tips and Tricks").
> Have you ever heard of "the solution to pullution is dilution"? If the
> amounts are small it is fine to put spent etchant down the drain. Even
> the proper authorities have suggested that route for small quantities.
> In many places you can hand it in to collection facilities for free
> though (again household quantities).
> 
> Things are _NOT_ as polluted as they are because of hobby quantities
> of etchant. You might cause more pollution simply by taking it to the
> collection point by car and the subsequent handling/processing from
> there on.
> 
> It totally depends on the quantity if the little bit of copper is a
> problem, and of course also on the size of the water treatment plant
> because that determines how diluted it gets. You shouldn't put it in a
> small personal treatment system that uses bacteria because even the
> small quantity might kill them off.
> 
> ST
>