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  1. Thread: vent grade

    by mrd
    Replies
    3
    Views
    831

    Of course it's getting inspected. I explained...

    Of course it's getting inspected. I explained the situation to the inspector, and he says I can install a santee in the drain orientation, that is, not inverted. I'll have to remember to keep my...
  2. Thread: vent grade

    by mrd
    Replies
    3
    Views
    831

    vent grade

    As I understand it, code (at least IPC) specifies vents must slope to drain, to prevent condensation from accumulating, but it doesn't care if it slopes toward the fixture drain or toward a vent...
  3. I believe for Type K/L/M coils, the nominal size...

    I believe for Type K/L/M coils, the nominal size corresponds to the inner diameter. For Type ACR, however, the nominal size corresponds to the outer diameter. So 1/4 ACR is smaller than 1/4 Type...
  4. Replies
    4
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    2,284

    Lavatory drain size

    Following the IPC, Lav = 1 DFU, and using Table 710.1(1): 1-1/2 drain @ 1/4in takes max 3 DFU, whereas 2in @ 1/4 slope takes 21 DFU max. I know greatly oversized pipes are more likely to clog.. but...
  5. Replies
    3
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    607

    Building drain support above grade

    I have a 3in building drain running about 6in or so above grade in a tall crawlspace. The floor joists are 3-1/2 feet above the pipe. What's the best way to support the drain?

    I was considering...
  6. Replies
    7
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    1,417

    How about a trap with cleanout? ...

    How about a trap with cleanout?

    http://media.mydoitbest.com/imagerequest.aspx?sku=430297&size=2&warehouse=C&newsize=200
  7. Replies
    7
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    1,417

    union trap fittings

    I'm roughing in a tub, and have a schedule 40 waste & overflow assembly. The bathroom sits above a tall conditioned crawlspace, and I thought using a trap with slip joints would give the homeowner...
  8. Replies
    35
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    8,205

    t is the duration of the shower in minutes. ...

    t is the duration of the shower in minutes.
    bw(t) is the amount of water added to the bathroom air during the shower
    bw(t) = aerated_water_per_minute * t

    iw(t) is the amount of water added to...
  9. Replies
    35
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    8,205

    I'm fairly sure an exhaust fan would be more...

    I'm fairly sure an exhaust fan would be more efficient than a dehumidifier, even including heating/cooling of replacement air, maintenance and repair of equipment, etc.

    Also, a passive intake to...
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