Are the drains copper?  Or just the supply lines?



Quoting Mark Perri <mjperri@gmail.com>:

> If you pour it down your pipes aren't you going to oxidize all your copper
> pipes and dissolve them?
>
> On Sun, Dec 20, 2009 at 7:04 AM, Dario Greggio <adpm.to@inwind.it> wrote:
>
>> Spehro Pefhany ha scritto:
>>
>> > THE major use of FeCl is for water treatment (as a flocculant), so I
>> don't
>> > think it's so bad (legality/illegality aside for the purposes of a
>> > theoretical discussion). But the Cu contamination
>> > can harm the useful microbes in a septic tank, which would not be nice.
>>
>> [...]
>>
>> thank you Spehro.
>> Indeed, it was causing big stains :)
>>
>>
>> --
>>
>> Ciao, Dario
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>> Cyberdyne
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