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Subject Author Date
Green Copper Mike Dobony 12-17-2006
---> Re: Green Copper JoeSpareBedroom12-17-2006
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Posted by George E. Cawthon on December 17, 2006, 8:01 pm


Mike Dobony wrote:
>>> We have a whirlpool in our basement and the copper is getting covered
>>> with a green,semi-powdery coating. I have tried several cleaners and
>>> even electrical cleaner, but this stuff is stubbornly staying in place.
>>> Anybody know of a way to clean this off without scraping? Thanks.
>>>
>>> Mike D.
>>>
>> You didn't specify WHICH copper was turning green, so I'll assume you mean
>> the pipes leading to the whirlpool. Here's an explanation of the green
>> color:
>>
>
> Nowhere near the whirlpool. They are in the next room.
>
>> "Copper exposed to water, oxygen, and CO2 in the air form a complex
>> mixture
>> of oxides and carbonates, referred to as "patina". The presence of acids
>> accelerates the process."Basically, it's copper's version of rust. No need
>> to obsess about it. But, copper wasn't the best choice for the pipes which
>> are close to the whirlpool. PVC (plastic) would've been better.
>>
>
> No need to be obsessed about it, but makes it difficult to sell the house
> for a good price. Grey poly is running to the whirlpool. These are in the
> next room and are the main lines running up to a manifold to run individual
> poly lines to each sink/faucet/etc.
>
>
If it affects the price of the house, then you
don't want to sell to that buyer.

I would worry more about the gray (you British?)
poly running to the whirlpool making the house
difficult to sell. But if you think gray is
superior, paint the damn things gray!

Posted by Mike Dobony on December 18, 2006, 6:28 am



> Mike Dobony wrote:
>>>> We have a whirlpool in our basement and the copper is getting covered
>>>> with a green,semi-powdery coating. I have tried several cleaners and
>>>> even electrical cleaner, but this stuff is stubbornly staying in place.
>>>> Anybody know of a way to clean this off without scraping? Thanks.
>>>>
>>>> Mike D.
>>>>
>>> You didn't specify WHICH copper was turning green, so I'll assume you
>>> mean the pipes leading to the whirlpool. Here's an explanation of the
>>> green color:
>>>
>>
>> Nowhere near the whirlpool. They are in the next room.
>>
>>> "Copper exposed to water, oxygen, and CO2 in the air form a complex
>>> mixture
>>> of oxides and carbonates, referred to as "patina". The presence of acids
>>> accelerates the process."Basically, it's copper's version of rust. No
>>> need to obsess about it. But, copper wasn't the best choice for the
>>> pipes which are close to the whirlpool. PVC (plastic) would've been
>>> better.
>>>
>>
>> No need to be obsessed about it, but makes it difficult to sell the house
>> for a good price. Grey poly is running to the whirlpool. These are in
>> the next room and are the main lines running up to a manifold to run
>> individual poly lines to each sink/faucet/etc.
> If it affects the price of the house, then you don't want to sell to that
> buyer.
>

That leaves an extremely small market.

> I would worry more about the gray (you British?) poly running to the
> whirlpool making the house difficult to sell. But if you think gray is
> superior, paint the damn things gray!

?????????????????????????????????????????????? Why would thermoplastic
plumbing make it hard to sell? It is the preferred material for such an
application! You obviously know nothign about plumbing!



Posted by HeyBub on December 17, 2006, 5:13 pm


Mike Dobony wrote:
> We have a whirlpool in our basement and the copper is getting covered
> with a green,semi-powdery coating. I have tried several cleaners and
> even electrical cleaner, but this stuff is stubbornly staying in
> place. Anybody know of a way to clean this off without scraping? Thanks.

Is it the stuff that surface copper turns into to give it that classic
patina found, for example, on the Statue of Liberty or is it algae?



Posted by Mike Dobony on December 17, 2006, 5:22 pm



> Mike Dobony wrote:
>> We have a whirlpool in our basement and the copper is getting covered
>> with a green,semi-powdery coating. I have tried several cleaners and
>> even electrical cleaner, but this stuff is stubbornly staying in
>> place. Anybody know of a way to clean this off without scraping? Thanks.
>
> Is it the stuff that surface copper turns into to give it that classic
> patina found, for example, on the Statue of Liberty or is it algae?
>

Not algae, but patina. These are the main water lines in which the
individual water lines are run from. The individual lines are grey poly,
much like the newer PEX.



Posted by HeyBub on December 17, 2006, 10:25 pm


Mike Dobony wrote:
>> Is it the stuff that surface copper turns into to give it that
>> classic patina found, for example, on the Statue of Liberty or is it
>> algae?
>
> Not algae, but patina. These are the main water lines in which the
> individual water lines are run from. The individual lines are grey
> poly, much like the newer PEX.

Okay, then. You have three practical alternatives:

1. Leave it alone.
2. Polish the pipes, then coat with lacquer to preserve the copper look.
3. Paint the pipes.



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