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  1. #1
    Join Date
    Feb 2008
    Location
    Iowa City, IA
    Posts
    108

    Default "S" Traps ? / 11 Year Old Home

    I had to travel almost 50 miles outside of my "normal" inspection area to do a home inspection for a relo company. The home was built in 2001. In my "Normal" area, the trap arms below sinks almost ALWAYS are installed through the wall below the sink (except in older homes with S traps). In this particular home (which was only 11 years old) all the sink drains were installed through the cabinet base / floor. I am aware that a vertical drain leg for waste fixtures can be acceptable when properly installed. However, I also know that the trap arm length generally needs to be at least 2 times the diameter of the pipe or sometimes a minimum of 8". Many of these traps appeared to have been installed as "S" traps, without any horizontal trap arm. The ones with a longer horizontal trap arm don't appear to fit the guidelines for vertical drain legs. What are your guys' opinions? For the most part, the rest of the home appeared to have been well built and in accordance with modern standards.

    http://i303.photobucket.com/albums/n...A120613040.jpg
    http://i303.photobucket.com/albums/n...A120613038.jpg
    http://i303.photobucket.com/albums/n...A120613041.jpg
    http://i303.photobucket.com/albums/n...A120613037.jpg
    http://i303.photobucket.com/albums/n...A120613036.jpg
    http://i303.photobucket.com/albums/n...A120613032.jpg

    Similar Threads:
    Inspection Referral

  2. #2
    Join Date
    Mar 2007
    Location
    Columbus GA
    Posts
    3,747

    Default Re: "S" Traps ? / 11 Year Old Home

    Unless there is some sort of exception in your area, none of those are allowed.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  3. #3
    Join Date
    Feb 2008
    Location
    Iowa City, IA
    Posts
    108

    Default Re: "S" Traps ? / 11 Year Old Home

    Those were my thoughts as well. And no "exceptions" that I am aware of that would allow for it. Most appear to be "S" traps, and some improperly vented "P" traps, correct?


  4. #4
    Join Date
    Feb 2009
    Location
    Southern Vancouver Island
    Posts
    4,607

    Default Re: "S" Traps ? / 11 Year Old Home

    Home owner did his own plumbing with parts from the local big box store.
    There could be hidden defects.
    Were there plumbing vents through the roof?

    John Kogel, RHI, BC HI Lic #47455
    www.allsafehome.ca

  5. #5
    Join Date
    Feb 2008
    Location
    Iowa City, IA
    Posts
    108

    Default Re: "S" Traps ? / 11 Year Old Home

    Yes. Two plumbing vents, came through the roof with 4" pipe. Supply plumbing was copper and appeared to have been installed by a licensed plumber, or at least someone who knew what there were doing, and did it well. That is what is puzzling with these drain traps....


  6. #6
    Join Date
    Jun 2008
    Location
    Stacy, MN
    Posts
    148

    Default Re: "S" Traps ? / 11 Year Old Home

    The 3rd and 5th pictures are called siphon legs (at least around here), they are as wrong as S-traps.


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