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Thread: Gray PVC vs White PVC

  1. #1
    Join Date
    Jul 2007
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    Gray PVC vs White PVC

    I need help to settle a disagreement. Under the NEC can you use white plumbing PVC in leu of gray listed PVC?

  2. #2
    Join Date
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    i think you already answered your question..

    listed PVC
    page 106 UL White Book 2008

    ........includes the UL symbol together with the word "LISTED", a control number and the product name

  3. #3
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    Probably, as long as it's buried. Try getting fittings to match though. It's a little tough pulling wire through a plumbing "L":grin:

  4. #4
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    352.6 Listing Requirements.
    PVC conduit, factory elbows, and associated fittings shall be listed.
    Don, Illinois
    "It is the first responsibility of every citizen to question authority." B Franklin

  5. #5
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    This topic was visited a few weeks ago. Since, in the listings, white plumbing PVC is NOT listed as an electrical raceway, it is not suitable for use as one.
    Kevin

    Certified Electrical Inspector/Former E.C.

  6. #6
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    It will work just fine but without the UL not legal.

  7. #7
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    Quote Originally Posted by Sam Branch View Post
    I need help to settle a disagreement. Under the NEC can you use white plumbing PVC in leu of gray listed PVC?
    I would never pass it :grin:
    "Appliances and wiring will burn out to protect fuses"

  8. #8
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    Quote Originally Posted by Sam Branch View Post
    I need help to settle a disagreement. Under the NEC can you use white plumbing PVC in leu of gray listed PVC?

    What are you using for? As a sleeve it's fine as a raceway it isn't.
    Rob

    Chief Moderator

    All responses based on the 2011 NEC unless otherwise noted

  9. #9
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    Feb 2009
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    Western KY on the Ohio River
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    As I recall, water pipe has a pressure rating and electrical conduit has a temperature rating.

  10. #10
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    One problem is by using white you might mis lead a plumber that cuts into it by mistake thinking its water. Best just use gray.

    Did use 2" gray once on a house i was building for a vent pipe. Inspector was not happy but being he knowed me and explained simply that i was out of white and had gray. Legally he could have red tagged but he used logic and passed it.

    Now if i am on a job and need a 3/4 coupling and am out i would borrow one from plumber and hope inspector not make issue.

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