Changing from 3/4" IMC to 1" IMC in a coupling

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Wahoo20

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Has anyone ever done this before? I can not find anything that says this is a code violation. I completely disagree with this kind of craftsmanship and I'm looking for anything to make the contractor replace.conduit.jpg
 
Wahoo20 said:
Has anyone ever done this before? I can not find anything that says this is a code violation. I completely disagree with this kind of craftsmanship and I'm looking for anything to make the contractor replace.View attachment 12507
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Are both conduits of adequate size?

At least you can see it. Imagine how frustrating if it was in a wall someplace.:happysad:
 
There is no direct rule against this and unless there is a safety issue why go looking to find a violation?

To me it is nothing but ego issues when someone tries to find a reason to fail an installation only becuse it is not done how they would have liked it to be done.

I have changed PVC sizes underground, it happens, as long as the smaller size is adequate there is no issue.
 
I understand you dont like it and want it replaced,,,time and time again the question comes as tell me this is wrong so I can make them re do it.
Certainly I can say an over sized conduit was put in place because of unknown circumstances then reduced to the size needed, but really the picture makes little visual sense overall. Ask the person who installed it why they did it..honestly wouldnt it be better if you got someone to redo it the way you want,,
 
Wahoo20 said:
Has anyone ever done this before? I can not find anything that says this is a code violation. I completely disagree with this kind of craftsmanship and I'm looking for anything to make the contractor replace.
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How/why does it look like it is bent 5 degrees at the coupling?

Is that a reducing bushing inside? Or is the conduit not mechanically continuous?

Or perhaps, is the bend separate from the fittings?
 
I will say, even though the change in size does not bother me the odd angle the pipes meet and lack of supports in sight makes me wonder about the quality of the work. I know that it may be properly supported, I am just saying it looks questionable in the picture.
 
My only problem is how good of a bond is between the two raceways? Especially if there is no EGC pulled within the raceway.

If it is a coupling with a reducing bushing threaded into it - both are straight threads and will never tighten - but the bushing can "bottom out" when it hits the 1 inch pipe on the other side, but takes little turning to make it loose again.

Also may be a little bit of why there appears to be deflection in the run at that joint, the loose fitting threads can allow some deflection with little strain on the pipe, where a tapered thread that is properly tightened will pull itself to a straight position.
 
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