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Old 12-12-2012, 09:50 AM   #31
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Nail in my vent pipe


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Originally Posted by brockmiera View Post
So Im guessing from the fact that no one has addressed this question that it isn't much of an issue?
I think we're all afraid to tell you it's okay and then have you blow yourself up and decide to sue us.

In light of that, maybe the cold copper rivet is the best solution...

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Old 12-12-2012, 10:05 AM   #32
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Nail in my vent pipe


The penny or the rivet? Go with the rivet if that nail has not caused you any trouble, then a rivet wont either, but Alans point is well taken. Theres a good chance that if you clean up that pipe real good, install the rivet, and sweat it in your problems are over. Well, at least this problem.
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Old 12-12-2012, 10:34 AM   #33
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Nail in my vent pipe


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The penny or the rivet? Go with the rivet if that nail has not caused you any trouble, then a rivet wont either, but Alans point is well taken. Theres a good chance that if you clean up that pipe real good, install the rivet, and sweat it in your problems are over. Well, at least this problem.
Fair. This is a much smaller problem than all the glue they put down for the forest green carpet!

So another question.

If pulling the nail out, drilling a hole, putting in a rivet and sweating solder over the top will most likely counteract the inherent nature of water wanting to stop falling with gravity and take a sharp turn horizontally, then why dont I just leave the nail in?

I was cleaning it up with my steel brush a little last night and accidentally hit it a couple times. Its in there pretty good.

Is the drywall nail made of a material that does not jive with the copper. Metallurgically speaking.
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Old 12-12-2012, 10:58 AM   #34
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Nail in my vent pipe


You generally can't loosen a rivet, but you can easily loosen a nail. Like you mentioned its good practice to use two compatible metals (ie brass & copper) whenever possible.

I'd want to be 100% sure it was a water-tight fix if for some reason your house trap gets cloged and water backs up above the patch, so I agree with installing a copper patch by solder. If using a rivet it might loosen over a long time from continuous falling "debris" hitting it unless you use a low profile rivet.
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Old 12-12-2012, 10:59 AM   #35
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Nail in my vent pipe


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Is the drywall nail made of a material that does not jive with the copper. Metallurgically speaking.
Ferrous metal (steel, iron, etc) touching copper in the presence of water does indeed experience galvanic corrosion. In fact code disallows iron and copper pipes to be joined to each other, except via a dielectric union (i.e., plastic insulator).

My understanding is that corrosion eats away at the less noble metal (iron in this case). In supply plumbing, this tends to lead to leaks as the iron develops holes, but since your pipe is not under pressure, you may have reached some kind of equilibrium where the corrosion by-products have formed deposits that have sealed the hole. So maybe all you need to do is cut the protruding part off.
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Old 12-12-2012, 12:24 PM   #36
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Nail in my vent pipe


I think you can buy copper rivets. Use one of them then hit it real quick with a drop of solder.
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Old 12-12-2012, 12:38 PM   #37
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Nail in my vent pipe


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Is there some type of patch I can use if I pull out the nail?
http://www.jbweld.com/product/j-b-waterweld/
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Old 12-12-2012, 08:08 PM   #38
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Nail in my vent pipe


The bigger problem with leaving the nail in is that it will rust out, and then you are left with an open hole.
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Old 12-12-2012, 08:25 PM   #39
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Nail in my vent pipe


So...were sure it's copper? Pull out the nail and clean up the hole. It will be a lot easier to decide what to do after that is done. It may be possible to just drill it out for a small brass plug. You may be able to drill and tap and be done with it....depends on how thick the pipe is at that point.
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Old 12-12-2012, 09:04 PM   #40
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Nail in my vent pipe


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So...were sure it's copper? Pull out the nail and clean up the hole. It will be a lot easier to decide what to do after that is done. It may be possible to just drill it out for a small brass plug. You may be able to drill and tap and be done with it....depends on how thick the pipe is at that point.
Yeah its Copper for sure.

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