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  1. Replies
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    If I understand what your are trying to do with...

    If I understand what your are trying to do with the tub, then lower the trap to the correct level and take off the vent vertically "from" the trap arm.
    If needed, the trap arm can run "the wrong...
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    Thanks, HJ. I would never suggest that anyone...

    Thanks, HJ. I would never suggest that anyone switch just one leg of a 240V circuit in real life...

    Does the NEC forbid it in every case? Specifically for "fixed" loads like motors, resistance...
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    HJ, we both know what I mean...;)

    HJ, we both know what I mean...;)
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    The first switch I grabbed out of my limited...

    The first switch I grabbed out of my limited stash (from a BB store) says "15A-120V-277VAC". A switch on one leg of a 240V circuit with no neutral would see 240V when open.

    Safety and common sense...
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    With 208/248V, you could make it work without a...

    With 208/248V, you could make it work without a neutral. My understanding is that if the neutral could be added later (conduit) then it doesn't need to be present. One question is about safety when...
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    That would be my first gut reaction too. However,...

    That would be my first gut reaction too. However, in some situations (like conveyor belts in a factory), a lockout breaker might be required. Besides, working on any circuit after just turning off a...
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    240/208V devices + conduit? You could always pull...

    240/208V devices + conduit? You could always pull the neutral later, if needed. That would satisfy the code...
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    Doh, I knew that ... now that you mention it.

    Doh, I knew that ... now that you mention it.
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    I'm no plumber, but two things look wrong to me....

    I'm no plumber, but two things look wrong to me. To clarify, is the black thing on the right a disposer?

    1) The "trap" is upside down making it useless. There appears to be a direct path for...
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    For sure, don't tie the neutrals from the two...

    For sure, don't tie the neutrals from the two circuits together.
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    This question is vaguely familiar, but I still...

    This question is vaguely familiar, but I still don't understand the exact requirements. How does everything interact?
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    If you mean that switch "A" switches light "A"...

    If you mean that switch "A" switches light "A" and "B" switches "B" with only three current carrying conductors between the switches, then I don't believe there is a way to do what you want with...
  13. Wow, I'm surprised I haven't been beat up by one...

    Wow, I'm surprised I haven't been beat up by one of the pros yet...

    Oops, the requirement for tying the breaker handles together is somewhat new (2008 NEC, I think). The way it is is (probably)...
  14. The two wires in the front look almost white. Are...

    The two wires in the front look almost white. Are they more red in real life?

    If those two breakers do indeed serve the one outlet, then they need their handles properly tied together -- or be on...
  15. Have you considered breaking up some concrete?

    Have you considered breaking up some concrete?
  16. Even the inspector out here "agreed" quickly on...

    Even the inspector out here "agreed" quickly on the difference between a disconnect and over current protection.
  17. Does the noise go away if you cover the drain? ...

    Does the noise go away if you cover the drain?

    If not, it could be the supply pipes (hot side) expanding and contracting with changes in temperature and rubbing against something.
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    You mean that left-right and...

    You mean that left-right and clockwise-counterclockwise are reversed, but up and down are not? My head hurts now...
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    How long do those plastic j hooks last?

    How long do those plastic j hooks last?
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    Here's the thought process I use when working...

    Here's the thought process I use when working with threaded things...

    With right handed threads, turning something clockwise makes it go down. Looking directly at a bolt or nut, down means...
  21. Then cut a hole in the middle of the straw and...

    Then cut a hole in the middle of the straw and try again...
  22. Against my better judgment, I will say one thing...

    Against my better judgment, I will say one thing ... you really are arrogant.
  23. Poll: You make it sound so complicated my head hurts....

    You make it sound so complicated my head hurts. I'd hate to have this discussion with you in the frequency domain...

    Two wires do not make two phases -- even I know that. When you bring the two...
  24. Poll: Hold on, I think I finally understand what the...

    Hold on, I think I finally understand what the confusion is about...

    Forget about the center tap at "C" and its connection to point the point between the two resistors. None of that is needed to...
  25. Poll: Oh wow, I missed this thread! Since this seems...

    Oh wow, I missed this thread!

    Since this seems to be theoretical in nature, I'll throw in my $0.0000002.

    The phase relationship between the two legs depends on your "point of view" or "point of...
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