Building Code and Building Construction - Questions and Answers
Or when you want to know how construction is supposed to be done.

The following Codemen are available to answer your questions:
All Codes and Standards - Jerry Peck, Codeman

Q&A Board links

  • FAQ



  • View New Questions

  • View Unanswered Questions

  • View Active Questions/Answers

  • Mark Questions as read

  • View Your Questions

  • Go To Your User Control Panel

  • Links to:
  • Construction Litigation Consultants

  • Florida Building Commission

  • Florida Building Codes Online

  • International Code Council

  • ICC Codes Free Online

  • Building Officials and Administrators of Florida

  • Product Approvals
  • Florida Product Approval

  • ICC Evaluation Reports Search

  • Miami-Dade NOA Search

  • Inspector and Contractor License Search
  • Search Florida Licenses

  • Technical links
  • Technical Information page

  • Contact Codeman

  • Custom Search



    New postby bigdog on Wed Aug 18, 2021 3:43 pm

    Any idea what this could possibly be for?? Can't think of any reason its necessary. The seller wasn't home to inquire.

    Looks like PEX off of the tail pipe and then connects to copper in the back of the cabinet.

    No idea where or how it terminates.

    David McCabe
    You do not have the required permissions to view the files attached to this post.
    Posts: 77
    Joined: Thu Apr 12, 2012 10:54 pm

    Re: Hummmm

    New postby Jerry Peck - Codeman on Wed Aug 18, 2021 3:56 pm

    Floor drain trap primer.

    Whenever water is used at that sink, some of the water goes out and down the piping, which most likely goes to a floor drain, and helps keep the floor drain primed and not evaporate dry.

    Was there a floor drain in that room, or maybe in the room on the other side of the wall?

    Is that an AAV, or is it a mechanical vent? AAVs are permitted, mechanical vents are not (except in manufactured homes and RVs).
    Jerry Peck - CodeMan
    Construction and Litigation Consultant - Retired
    User avatar
    Jerry Peck - Codeman
    Site Admin
    Posts: 1166
    Joined: Fri Dec 12, 2008 12:06 pm

    Re: Hummmm

    New postby bigdog on Wed Aug 18, 2021 4:54 pm

    I was thinking the same thing but I saw no floor drain.
    Its a 2 story townhome and the laundry equipment was wisely installed on the 2 floor across the hallway with no pan or visible drain.
    I did not move the washer to check under it though. I suppose its possible there is a drain under the washer I couldn't see but I also didn't notice any slope to the laundry room floor.
    I'll just have the buyer inquire about it from the seller.

    Posts: 77
    Joined: Thu Apr 12, 2012 10:54 pm

    Return to Plumbing: Water heaters, fixtures, traps, hose bibbs, water pressure, supply & DWV piping

    Who is online

    Users browsing this forum: No registered users and 3 guests