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  #1  
Old 10/27/09, 5:16 PM
Mark Nahrgang's Avatar
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Default Grey drain pipe ok?
Is this type of pipe okay to use for a drain pipe? It was used in combination with PVC. I've seen it in the electrical section for conduit, but am not sure if it's ok to use it like this... Anyone have a quick answer?

Thanks in advance.
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  #2  
Old 10/27/09, 5:25 PM
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Default Re: Grey drain pipe ok?
Mark...
Were there any marking that you could see? Could be standard PVC...

http://www.usplastic.com/catalog/pro...ookie%5Ftest=1


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  #3  
Old 10/27/09, 5:38 PM
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Default Re: Grey drain pipe ok?
I didn't think to look. I've reviewed all my photos of the pipe, and I don't see any printing at all.
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  #4  
Old 10/27/09, 5:41 PM
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Jeffrey R. Pope Jeffrey R. Pope is offline
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Default Re: Grey drain pipe ok?
It looks like electrical conduit to me. It also looks like they used silicone for glue.

If there are no markings on the pipe, you should defer it and recommend that it be verified as approved for this application.


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  #5  
Old 10/27/09, 5:50 PM
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Default Re: Grey drain pipe ok?
Quote:
Originally Posted by jpope View Post
It looks like electrical conduit to me. It also looks like they used silicone for glue.

If there are no markings on the pipe, you should defer it and recommend that it be verified as approved for this application.
Sounds like good advice. Thanks Jeff!
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  #6  
Old 10/29/09, 7:08 PM
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Default Re: Grey drain pipe ok?
UPDATE:

Apparently it wasn't a drain pipe but central vacuum....
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  #7  
Old 10/29/09, 7:12 PM
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Default Re: Grey drain pipe ok?
Quote:
Originally Posted by mnahrgang View Post
UPDATE:

Apparently it wasn't a drain pipe but central vacuum....
Hmmm... wonder what the rating for "suction" is?


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  #8  
Old 10/29/09, 7:20 PM
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Default Re: Grey drain pipe ok?
I though of that.

BTW-Vac pip is usually schedule 20 not 40


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  #9  
Old 10/29/09, 7:59 PM
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Default Re: Grey drain pipe ok?
Quote:
Originally Posted by mlarson View Post
I though of that.

BTW-Vac pip is usually schedule 20 not 40
other than the obvious smart A*** answer "20" what is the difference. And why would anyone care? (I don't know a thing about vacuum systems.)
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  #10  
Old 10/29/09, 8:19 PM
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Default Re: Grey drain pipe ok?
Quote:
Originally Posted by mnahrgang View Post
other than the obvious smart A*** answer "20" what is the difference. And why would anyone care? (I don't know a thing about vacuum systems.)
Wall thickness.


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  #11  
Old 10/31/09, 1:09 AM
Larry F. Rollins Larry F. Rollins is offline
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Default Re: Grey drain pipe ok?
The installer would care because 20 is cheaper than 40.
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  #12  
Old 10/31/09, 1:26 AM
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Default Re: Grey drain pipe ok?
So functionally speaking....it doesn't matter?
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  #13  
Old 10/31/09, 1:42 AM
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Default Re: Grey drain pipe ok?
Not on a vacume system


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