Toilet Drainage

Discussion in 'Toilet Forum discussions' started by oconnocf, Jul 25, 2008.

  1. oconnocf

    oconnocf New Member

    Messages:
    5
    I am installing all new plumbing on the third floor of my house. I am installing a toilet about 8 feet away from the existing stack. Is there a code for the initial drainage pipe drop from the toilet to the horizonatal line? I know the slope after the drop is a 1/4" per foot.
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,413
    Location:
    Bothell, Washington
    The total devolped length of pipe between the vent, and the flange can be six feet.
  3. oconnocf

    oconnocf New Member

    Messages:
    5
    Thanks for the quick response. What about right below the toilet, does there need to be an initial straight vertical drop or can I 45 it and then do my slope?
  4. Terry

    Terry Administrator Staff Member

    Messages:
    15,413
    Location:
    Bothell, Washington
    You can angle it. Or drop it straight for a while.
  5. oconnocf

    oconnocf New Member

    Messages:
    5
    Thanks for the help Terry!
  6. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    They even make a flange with a 45 elbow built in...
    Make sure that if you use a PVC/ABS flange that you use one that has a stainless steel ring...

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    Last edited: Jul 25, 2008
  7. topshot

    topshot New Member

    Messages:
    45
    Location:
    Indiana
    Why? PVC won't rust either or are you saying it will eventually crack/break?
  8. Terry

    Terry Administrator Staff Member

    Messages:
    15,413
    Location:
    Bothell, Washington
    We do see some bad plastic flanges later on.
  9. topshot

    topshot New Member

    Messages:
    45
    Location:
    Indiana
    OK. Is one stainless model any better than the others or will pretty much any flange with a SS ring from a big box suffice? I'll be going into 3" PVC (and won't be getting one that fits inside the pipe :) ).
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