air conditioning drain

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by rhans100, Jan 21, 2006.

  1. rhans100

    rhans100 New Member

    senerio: two story condo building. upper and lower unit's a/c drains merge into one line and then discharge to the outside. drain gets plugged outside and water backs up into lower unit. this happened in florida and lots of water was generated. any thoughts on building codes, poor design etc.
  2. jimbo

    jimbo Plumber

    San Diego
    Where does it drain to: obviously the drain should terminate above grade to keep out dirt, bugs, grass clippings, etc.
  3. Snowman

    Snowman New Member

    Yep, I understand. I live in Florida too. Everytime I change the filter(s) in my upstairs and downstairs unit(s) I pour a cup of bleach down the a/c drain.

    I hope that's what you are talking about. You get a buildup inside the pipe. If you can't clear it, just blow into the pipe with all openings covered except the exit end. :)
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