Homebrew PCBs

----- Original Message ----- 
From: "Stefan Trethan" <stefan_trethan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, October 07, 2008 11:20 AM
Subject: Re: [Homebrew_PCBs] Re: Getting ready to switch from Ferric 
Chloride to ???????


> As long as you don't dispose of a large amount at once in this way i don't
> expect a problem.
> What constitutes a "large amount" probably depends on the size of your
> sewage treatment plant.


I saw somewhere else that one shouldn't drink from the hot water supply, 
because the heat causes the water to have high copper levels. I've known 
people who always filled kettles from the hot tap, to save energy.

Leon