Plumbing 1.5 drain line

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by dolphin64, Nov 5, 2012.

  1. dolphin64

    dolphin64 New Member

    Nov 5, 2012
    I have a friend who's running 1.5" abs drain pipe from the second story bathroom to the basement with three fixtures on it. The three fixtures are bath tub, the sink, and the kitchen sink all tied into the 1 1/2 drain. The drain run is 25 feet plus he plans on puttinig in a drain vent for it. He dosnt want to re tie into the three inch stack thats into the bathroom all readily because two of the floor joist have been badly notched. I told him to sister them and re drill holes into them and tie back into the main Three inch stack in the bathroom instead of going through all that trouble. He worried if he sisters them and drills new holes he'll end up taking more wood out of the old joist.
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    You have two problems.
    1. Drilling the joists, which is not a problem if done correctly
    2. Him using a 1.5" drain line in the first place.
  3. Sponsor

    Sponsor Paid Advertisement

Similar Threads: Plumbing drain
Forum Title Date
Plumbing Forum, Professional & DIY Advice Plumbing Basement Drain Dec 28, 2015
Plumbing Forum, Professional & DIY Advice Odors coming from drains after plumbing remodel Nov 12, 2015
Plumbing Forum, Professional & DIY Advice Moving Bathroom Sink Drain Plumbing Sep 27, 2015
Plumbing Forum, Professional & DIY Advice Is my bathtub plumbing correct? Venting/Drain setup Aug 19, 2014
Plumbing Forum, Professional & DIY Advice Draining the plumbing to avoid winter freeze Aug 12, 2014

Share This Page