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Subject: Re: [Homebrew_PCBs] Re: Sponge etching with HCl and H2O2?

From: Roland Harriston <rolohar@...>
Date: 2011-11-27

I (Roland) usually water-dilute the etch mix at about 100-to-1 ratio,
and pour it
down the drain.
This is not a problem in my area because all of the plumbing is plastic.
If you live in an older development that has metal plumbing, then you
probably don't want to use my method.

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DaveC wrote:
>
>
> >I personally don't like to have a bunch of chemicals of any sort sitting
> >around the house, so I use a batch once
> >and get rid of it.
> >...
>
> What is your technique for getting rid of etchant?
>
> Thanks
> Dave
>
>



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