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Old 05-03-2018, 07:45 PM   #1
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PVC conduit reducer


Hello, I have been looking online for a PVC conduit reducer fitting that will adapt underground 1 1/2 (1.5) inch PVC to 3/4 (or 1 inch) PVC and have not been able to find any products for these sizes. Does anyone know if such a size reducer exists, or alternatively another product I can use to adapt this for. My garage has 1 1/2 inch PVC coming through the concrete floor from underground and I want to transition it to 3/4 or 1 inch PVC underground. Thanks!
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Old 05-03-2018, 07:59 PM   #2
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Re: PVC conduit reducer


The fitting is called a swedge reducer but I don't believe they come in that small a size. Use a junction box.

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Old 05-03-2018, 08:20 PM   #3
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Re: PVC conduit reducer


Reducing bushings and couplings are available in a myriad of size combinations.
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Old 05-03-2018, 08:37 PM   #4
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Re: PVC conduit reducer


Why can't you go all the way to the panel with the larger conduit ?
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Old 05-04-2018, 05:24 AM   #5
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I could, just didn't want to drill a larger hole into the house (to main panel) than necessary. I didn't install the 1.5 inch PVC from the garage, so that wouldn't have been my first choice if I had installed it, but I don't want to rip it out of the concrete.
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Old 05-04-2018, 05:44 AM   #6
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Re: PVC conduit reducer


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Reducing bushings and couplings are available in a myriad of size combinations.
You can't use a reducing bushing in the middle of a conduit run. How would you pull thru it?

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Old 05-04-2018, 05:50 AM   #7
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Re: PVC conduit reducer


https://www.homedepot.com/p/1-1-2-in...2223/202043291
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Old 05-04-2018, 07:48 AM   #8
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That link doesn't indicate what it reduces to?
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Old 05-04-2018, 07:58 AM   #9
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Re: PVC conduit reducer


Never seen a reducer used and wouldn't do so. I'd change sizes at a pull box.
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Old 05-04-2018, 08:02 AM   #10
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Re: PVC conduit reducer


Installing the reducer will limit any future changes . I would leave it full size all the way and keep the flexibility to run larger conductors .
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Old 05-04-2018, 09:15 AM   #11
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So can I reduce at the conduit body i.e. at this location? : https://www.homedepot.com/p/Carlon-3...-CTN/100404084

I'll have more questions about doing the entire install but wanted to get this relatively minor concerned addressed first before I begin trenching.
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Old 05-04-2018, 10:08 AM   #12
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Re: PVC conduit reducer


You would have to use a 1.5" conduit body and reduce to a smaller size. You cannot bury or make the conduit body inaccessable.

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Old 05-04-2018, 10:40 AM   #13
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Re: PVC conduit reducer


Just continue on with the size you have. There may come a day you realize all these guys are right.
Besides, how much more work is it to make a 3/4" opening verses a 1.5"?
Forget the reducer.
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Old 05-04-2018, 11:59 AM   #14
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Re: PVC conduit reducer


Thanks everyone for the input. Would something like the following work?
I would run the existing 1 1/2 inch pvc conduit underground and then when it comes above ground before entering the building I will connect it to a 1 1/2 inch conduit body, and the other end of the conduit body (going in to the building) could have the below reducer on it to transition to 1 inch pvc?

https://www.homedepot.com/p/Carlon-1...-CAR/202077365
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Old 05-04-2018, 12:31 PM   #15
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Re: PVC conduit reducer


Quote:
Originally Posted by kdrymer View Post
Hello, I have been looking online for a PVC conduit reducer fitting that will adapt underground 1 1/2 (1.5) inch PVC to 3/4 (or 1 inch) PVC and have not been able to find any products for these sizes. Does anyone know if such a size reducer exists, or alternatively another product I can use to adapt this for. My garage has 1 1/2 inch PVC coming through the concrete floor from underground and I want to transition it to 3/4 or 1 inch PVC underground. Thanks!
Quote:
Originally Posted by kdrymer View Post
Thanks everyone for the input. Would something like the following work?
I would run the existing 1 1/2 inch pvc conduit underground and then when it comes above ground before entering the building I will connect it to a 1 1/2 inch conduit body, and the other end of the conduit body (going in to the building) could have the below reducer on it to transition to 1 inch pvc?

https://www.homedepot.com/p/Carlon-1...-CAR/202077365
It REALLY helps those replying on DIY, if they can understand just from reading text when no pics are posted, WHAT the person asking for help is doing on their project. Now we have confusing instructions in the above red. IS the 1.5 in PVC already ran UG and then up through the garage floor presently OR is it yet to be installed ?
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