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Thread: Hot Tub Wiring

  1. #16
    Electrician ActionDave's Avatar
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    Yes, PVC is acceptable. I would use EMT if it were my house. PVC can get droopy when it sits in the sun. Make sure it is supported to code.

  2. #17
    DIY Junior Member aopainter's Avatar
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    it wont be in the sun. It'll be in my attic, and I'm going to get brackets to tie it down

  3. #18
    Jack of all trades DonL's Avatar
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    Use the correct Romex™ wire and skip the indoor conduit...Unless required in your town.


    P.S. And aopainter don't forget the cost to operate the unit, for the electric and chemicals to maintain it.
    Last edited by DonL; 06-01-2011 at 12:45 PM. Reason: P.S.
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  4. #19
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by ActionDave View Post
    SO should never be run in an attic. It is meant to be used where flexibility is needed not durability. It is never a substitute for permanent wiring.
    Thanks for pointing that out ActionDave,

    How flexible do you think a Type SO 6/3 wire would be.

    I guess you have never worked in the industrial plants, They use it for the big machines and run it in cable trays. And it is very durable, when installed and used in the proper environment.

    How many people have a cable tray in their attic ?

    Jim already said it all, Why don't you catch up.


    O , and have a great day.


    DonL


    P.S. Around here a outdoor Spa / Hot tub is not considered as a permanent fixture. That is why there is no requirement for a building permit. That may vary from area to area.
    Last edited by DonL; 06-01-2011 at 12:34 PM. Reason: P.S.
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  5. #20
    DIY Junior Member aopainter's Avatar
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    What is the correct Romex™ wire?

    edit: I looked it up, and I still think it's going to be cheaper to get the cables and run them through PVC Conduit. I can get 6AWG red/blk for $63/100ft, and 8AWG wht for something like $40/100ft, and 12AWG grn/yllw for $30/100ft. Add that to the conduit that I should be able to get under $100, and I can probably run it all for under $300. For $100 ft of 6/3 romex, it runs around that same cost, and my electrician still wants THHW for the outside connection from the disconnect box, to run in EMT conduit.
    Last edited by aopainter; 06-01-2011 at 02:06 PM.

  6. #21
    Jack of all trades DonL's Avatar
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    It should be on a ground fault interrupt.


    DonL
    Last edited by DonL; 06-01-2011 at 10:29 PM.
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  7. #22
    Jack of all trades DonL's Avatar
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    Mixing conductor sizes and colors may be a problem, the ground wire can be smaller, but the other current conductors need to be the same size.

    I hope your project works well.

    Be careful playing with electricity...

    DonL
    Last edited by DonL; 06-01-2011 at 10:33 PM.
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  8. #23
    Electrical Contractor Jim Port's Avatar
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    I would not change to a smaller size neutral. Some tubs also call for a ground the same size as the other conductors.

  9. #24
    Electrician ActionDave's Avatar
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    Quote Originally Posted by aopainter View Post
    What is the correct Romex™ wire?

    edit: I looked it up, and I still think it's going to be cheaper to get the cables and run them through PVC Conduit. I can get 6AWG red/blk for $63/100ft, and 8AWG wht for something like $40/100ft, and 12AWG grn/yllw for $30/100ft. Add that to the conduit that I should be able to get under $100, and I can probably run it all for under $300. For $100 ft of 6/3 romex, it runs around that same cost, and my electrician still wants THHW for the outside connection from the disconnect box, to run in EMT conduit.
    What size breaker are you tying the 6AWG to? I would guess either a fifty or forty amp breaker. That would mean you would need at least a 10AWG green.

    Jim Port correctly states that some manufactures, a lot actually, want a full size neutral and ground. Check your instructions.

  10. #25
    DIY Junior Member aopainter's Avatar
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    It's a 60 amp Disconnect panel

  11. #26
    Electrical Contractor/Instructor jwelectric's Avatar
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    Don’t make this more than it has to be.

    Install #4 SE-R al. to the disconnect located on the outside wall and then flex and THW cu. conductors to the tub.

  12. #27
    Jack of all trades DonL's Avatar
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    I am glad you stopped by JW,

    I don't think that his friend needs to be thrown under the bus, he is trying to help out.

    And aopainter just wants help, not BS.


    Thank You...
    Theory only works perfect in a vacuum.

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  13. #28
    Electrician ActionDave's Avatar
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    Quote Originally Posted by aopainter View Post
    It's a 60 amp Disconnect panel
    10AWG copper will work for an equipment ground up to sixty amp.
    Quote Originally Posted by jwelectric View Post
    Don’t make this more than it has to be.

    Install #4 SE-R al. to the disconnect located on the outside wall and then flex and THW cu. conductors to the tub.
    This is another way to skin your cat and would most likely be more economical.

  14. #29
    DIY Junior Member aopainter's Avatar
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    I can't find this cable anywhere online to know what it looks like. I'm going down to the electrical wire store today, so I'll ask about that wire. I was able to get about 90ft of PVC conduit for $17, so i'm going to put that in the attic

  15. #30
    Jack of all trades DonL's Avatar
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    Save some conduit for exposed wire outside...

    What wire can you not find ?
    Last edited by DonL; 06-03-2011 at 09:12 AM.
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