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  #1  
Old 10/12/08, 7:44 PM
Richard A. Maday's Avatar
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Default What causes this?

Got corrosion?
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  #2  
Old 10/12/08, 8:10 PM
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Default Re: What causes this?

Got High Humidity?




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  #3  
Old 10/12/08, 8:16 PM
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Default Re: What causes this?

Quote:
Originally Posted by cduphily View Post
Got High Humidity?
Thanks.

I guess a better question is do you see anything in the pictures that would be a contributing (and correctable) factor.

No, the condensate line didn't appear to be leaking.



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  #4  
Old 10/12/08, 8:21 PM
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Default Re: What causes this?

Quote:
Originally Posted by rmaday View Post
Thanks.

I guess a better question is do you see anything in the pictures that would be a contributing (and correctable) factor.

No, the condensate line didn't appear to be leaking.
Nope... looks like everyday excessive moisture to me.

Guess my question would be why?




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Old 10/12/08, 8:30 PM
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Default Re: What causes this?

Quote:
Originally Posted by rmaday View Post
Thanks.

I guess a better question is do you see anything in the pictures that would be a contributing (and correctable) factor.

No, the condensate line didn't appear to be leaking.
I assume the humidifier (above the BIP in photo #2) is NOT leaking ... bad float/small crack in the jacket, did you check the feed for the humidifier? Be it a flare, commpression fitting possible small leak you may have overlooked? is this space conditioned? dehumidifier installed? Tough to tell without being there. (overstating the obvious)




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  #6  
Old 10/13/08, 10:31 AM
Gary Reecher Gary Reecher is offline
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Default Re: What causes this?

Could have been the piping was sprayed with a gas leak detection solution and was not cleaned off.
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  #7  
Old 10/13/08, 11:02 AM
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Default Re: What causes this?

Don't I see a drip on the bottom left of the union? both pic# 1 & 3.

Induced draft leak? Or other leak from above.



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  #8  
Old 10/13/08, 7:04 PM
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Default Re: What causes this?

Chemical storage (chlorine) nearby?

Old piping used for drip leg and short leg?


Wire brush the rust off and paint it.





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  #9  
Old 10/14/08, 9:44 AM
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Default Re: What causes this?

That looks like standard galvanized pipe. Anywhere that I have worked that gas has been common, only black iron pipe or copper were allowed. Is that standard galvanized?



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  #10  
Old 10/17/08, 12:08 PM
Greg Veal Greg Veal is offline
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Default Re: What causes this?

I'm going to guess higher humidity than recommended (why?), and/or possible stored corrosive agent, and/or possibly leaking corrosive condensate (past or present) leaking onto the piping. I don't see combustion design provisions in the pics. This could be a contributing/possible culprit.
Let us know what you finally determine, after further inspection by a Prof. HVAC Contr.
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  #11  
Old 10/17/08, 8:29 PM
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Default Re: What causes this?

Looks like black pipe and someone didn't clean off the leak detector solution.
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  #12  
Old 10/17/08, 8:32 PM
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Default Re: What causes this?

Quote:
Originally Posted by sparksnmore View Post
Looks like black pipe and someone didn't clean off the leak detector solution.
Oops, sorry, I see Gary already said that.
It IS black pipe.
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  #13  
Old 10/19/08, 12:19 PM
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Default Re: What causes this?

not a problem with the gas pipe, but is the condensate line traped?



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