Corrosion on new copper?

[sgarland]

So I was doing an inspection specifically for a roof leak that took me into the basement to check the chimney and right away I noticed several No Nos in this 2 year old home. The one I am curious about is the excessive amount of corrosion on the copper lines running to the PEX manifolds. There is quite a bit of green, powdery residue on the pipes. What would cause this? I have seen 30+ year old homes with none of this. I would try to post a pic but just imagine a new house with a lot of green corrosion on the small amount of copper. Bad flux? Bad solder? Just didn't wipe excess off?

[Marcel R. Cyr]

Hi. Steve; This may help shed some light on that subject.

A Hidden Time Bomb - Corrosion of Piping Systems Causes of Corrosion in a Piping System, Traditional Repair Methods
and the Modern System of Pipe Restoration You can view the rest of the article here;

http://www.hotel-online.com/Neo/News..._TimeBomb.html

Hope this helps a little.

Marcel

[Bob Elliott]

Copper can turn green in hours if certain acids come into contact.
if you do not believe me just mix Miracle Grow and water into a paste and brush it on to some copper.
The green may be superficial and black is also no concern in most cases.Just look at any older copper outside the house.

Not saying there for sure is no problem, but it may be nothing.

[Wayne B. Wilson]

Originally Posted by relliott

Copper can turn green in hours if certain acids come into contact.
if you do not believe me just mix Miracle Grow and water into a paste and brush it on to some copper.
The green may be superficial and black is also no concern in most cases.Just look at any older copper outside the house.

Not saying there for sure is no problem, but it may be nothing.

I have to ask
why would someone come up with this one

[Jeffrey R. Jonas]

Originally Posted by wwilson3

I have to ask
why would someone come up with this one

Instant Antiques... an object with the green "patina" is worth considerably more than a "polished" piece.

[Bob Elliott]

Originally Posted by wwilson3

I have to ask
why would someone come up with this one

I am an artist and the ability to turn copper green came in handy.
Antique look is often preferable when selling rustic art.

[Brian E. Kelly]

Originally Posted by sgarland

So I was doing an inspection specifically for a roof leak that took me into the basement to check the chimney and right away I noticed several No Nos in this 2 year old home. The one I am curious about is the excessive amount of corrosion on the copper lines running to the PEX manifolds. There is quite a bit of green, powdery residue on the pipes. What would cause this? I have seen 30+ year old homes with none of this. I would try to post a pic but just imagine a new house with a lot of green corrosion on the small amount of copper. Bad flux? Bad solder? Just didn't wipe excess off?

Any Chinese drywall in that house??

http://www.canada.com/Health/Toxic+C...648/story.html

Probably did not clean off the flux is my guess, but a picture would help

[Wayne B. Wilson]

OK i did have to ask
I thought you had slipped into boyhood and where just sitting around thought if i mixed this with that what would it do to copper lol

[Bob Elliott]

Sounds like me.
When 5 or 6 I was warming corn starch and blowing it through straws into flames just to see if it made a good torch.

Graduated to building small rockets with Estes engines at 11

[Marcel R. Cyr]

Originally Posted by relliott

Sounds like me.
When 5 or 6 I was warming corn starch and blowing it through straws into flames just to see if it made a good torch.

Graduated to building small rockets with Estes engines at 11

A rocket Sceintists turned Home Inspector. Hmmmmmmmmmmmmmm!

[Bob Elliott]

Originally Posted by mcyr

A rocket Sceintists turned Home Inspector. Hmmmmmmmmmmmmmm!

Hmmmmmmm is right
I wonder what I can do with a Hot Water Tank?

Just kidding of course as next thing I know the FBI will be knocking at my door for being the next Unibomber. haha.

[Marcel R. Cyr]

Originally Posted by relliott

Hmmmmmmm is right
I wonder what I can do with a Hot Water Tank?

Just kidding of course as next thing I know the FBI will be knocking at my door for being the next Unibomber. haha.

I know, I know, I know, break off that little lever on the top and run a couple of blocks down and no one will know.

[Bob Elliott]

Originally Posted by mcyr

I know, I know, I know, break off that little lever on the top and run a couple of blocks down and no one will know.

My crazy Uncle said if he ever got mad enough the best way to destroy a building is to pour cement down the plumbing vents.

Imagine the expense.

[Marcel R. Cyr]

Originally Posted by relliott

My crazy Uncle said if he ever got mad enough the best way to destroy a building is to pour cement down the plumbing vents.

Imagine the expense.

One crazy Uncle Bob.
But before the expense would be can you imagine the smell?

[Bob Elliott]

Originally Posted by mcyr

One crazy Uncle Bob.
But before the expense would be can you imagine the smell?

Guess those toilets would not flush like they should.

Back when young ,I had a side job in a couple of SRO hotels and all they had were Junkies plus Hookers that would stop up the toilets then wait till the brown was pouring past the top for a month or so before calling me to unplug them.

Had to swat fly's as soon as I opened the door.