FHB Logo Facebook LinkedIn Email Pinterest Twitter X Instagram Tiktok YouTube Plus Icon Close Icon Navigation Search Icon Navigation Search Icon Arrow Down Icon Video Guide Icon Article Guide Icon Modal Close Icon Guide Search Icon Skip to content
Subscribe
Log In
  • How-To
  • Design
  • Tools & Materials
  • Restoration
  • Videos
  • Blogs
  • Forum
  • Magazine
  • Members
  • FHB House
  • Podcast
Log In

Discussion Forum

Discussion Forum

Undersink work in latest FH

Gene_Davis | Posted in General Discussion on May 20, 2007 04:50am

I know it won’t work if you want a disposal, but we don’t, so what is wrong with this?  Looks OK to me, but we don’t have any plumbing inspections where we are.

View Image

 

Reply
  • X
  • facebook
  • linkedin
  • pinterest
  • email
  • add to favorites Log in or Sign up to save your favorite articles

Replies

  1. IdahoDon | May 21, 2007 01:50am | #1

    I like the idea of more room and better performance.  I didn't like the way the cobbled together plumbing looks.  It's like an ugly mut lap dog--it eats and craps just as fine as a pure bred, but just doesn't look right. 

    To move the p-trap back out of the way I like the way a handicaped-accessible brass setup looks.

    Best of all would be careful preplanning during the framing stage, allowing room in the stud cavity for the p-traps behind an access door.  The drain runs out the sink and directly back to the wall.  A clean access panel allows pulling the p-trap if needed.

    What is the advantage of running the exposed pex up a plywood box with the valves up high?  A carefully routed stainless supply line looks much better than a box and bare pex.

    A much cleaner look is plumbing out the back of the cabinet up high so it's truely out of the way.

     

     

    Beer was created so carpenters wouldn't rule the world.

  2. plumbbill | May 21, 2007 02:17am | #2

    The big pic meets code, except  the plumb quick rubber preformed fittings are not permitted by code on a drainage line, & are garbage, but under a sink before the "P" trap is not a drainage line. The 90's are probably ok, but the rubber "san-tee" has got to go.

    Under my sink is a small mechanical room & when I did my remodel I put my foot down with the DW & said that area is mine, MINE, MINE!!!!!!!! I have a 3 stage 5 micron water filter, 1HP garbage disposal, 200 degree insta hot, & a 36 degree water chiller.

    I haven't recieved my latest issue yet, so I don't know if the inset pic is a before or after, but it does NOT meet code "S" traps are not legal & are self defeating.

    I noticed the Studor vent------ I do not recomend them unless you can't get a vent pipe to the location. Studor vents are mechanical, & all mechanical things eventually fail. Most of the studor vents I run across are due to someone being lazy or cheap or both.

    I fear no man & only one GOD. Me

    1. User avater
      Gene_Davis | May 21, 2007 02:29am | #3

      I wonder, if there is so much wrong with the arrangement, code-wise and otherwise, then why in the world does Fine Homebuilding run it?

      Shouldn't they vet these topics more thoroughly, when code issues are included?

      Sorry, I guess that is a rhetorical Q.

      So, we can clear the code issue by using SCH40 PVC fitting (a combo wye & 1/8 bend) instead of the rubber fitting shown at the floor?

      The author claims in the article that the flex fittings are used to a.) allow the setup to be able to absorb impact, b.) facilitate easier removal for cleaning, and c.) as shown used at top and bottom, allow the rigid center subassembly to move when bumped.

      What is your take on the way the DW drain comes into the arrangement?

       

      Edited 5/20/2007 7:49 pm ET by Gene_Davis

      1. FHB Editor
        JFink | May 21, 2007 03:21am | #4

        Rex Cauldwell is a Master Plumber, Master Electrician, and wrote a book on House Inspections... I trust that the setup he wrote about is up to snuff. Then again, I haven't given the article a close look yet.

        by the way...the inset pic is a "before"Justin Fink - FHB Editorial

        Your Friendly Neighborhood Remodelerator

      2. plumbbill | May 21, 2007 03:28am | #5

        The rubber "san-tee" needs to be replaced with a rigid "san-tee" , "wye" & "1/8" bend in a vertical configuration does not meet code for a trap arm to waste & vent connection.

        I see no problem with the DW hook-up unless it's behind the wall. Those connections are mechanical & need access.

        As far as FHB printing it----- how I stumbled across breaktime, I was looking for a way to send a letter to the editor concerning studor vent that they were promoting in an issue in Oct 05. In the big pic there is not that much wrong that I can see from the pic, just get rid of the preformed rubber.

        & remember I go by the UPC which is the strictest of the plumbing codes, it is written by IAPMO ( International Association of Plumbing & Mechanical officials) which I am a member of.I fear no man & only one GOD. Me

        1. User avater
          Gene_Davis | May 21, 2007 03:55am | #6

          I appreciate your feedback.  I'm no plumber, but I like to know of these things.

          Please clarify for me the use of san-tees versus the single-piece combo.

          Are combos only to be used in flatwise situations, and san-tees only vertical?

          Is it legit to roll a san-tee 45 or more when venting a sewer line?  Or must a wye & 1/8 bend be used?

          My locale uses a version of the IPC.

          1. plumbbill | May 21, 2007 04:44am | #7

            The reason you need a "san-tee" verticly when connect to a trap arm verses a "combo" is a combo connects to the vertical below the top of the side inlet pipe.

            That creates an "S" trap which under a heavy flow will siphon itself & defeat the purpose of the trap.

            When it is a horizontal line then you need a "combo" on it's back, cause any vent piping below the flood level must be in drainage pattern fittings.

            45 degrees or less from a horizontal line is still horizontal & a combo is used & it can be rolled.

            45 degrees or less from a vertical is still vertical & then you need a san-tee.

            Here's how I like to be a smart azz with new inspectors.

            RED = horizontal     BLUE = vertical    what is the green line

            View ImageI fear no man & only one GOD. Me

          2. User avater
            RichBeckman | May 21, 2007 06:22am | #10

            "what is the green line"A transition

            ????????????

            Rich BeckmanYou are somewhere.

    2. arrowshooter | May 21, 2007 05:09am | #8

      You say the pre formed fittings are garbage.

      I have been using these for years without a problem. They may not look good but they make it so easy to service the lines etc that I think its the only way to go that makes sence.

      The system he shows is a glorified S trap which is illegal in Georgia, but I think he's smart using the rubber fittings.

      The Moving Finger writes; and, having writ,Moves on: nor all your Piety nor WitShall lure it back to cancel half a Line,Nor all your Tears wash out a Word of it." - Rubaiyat of Omar Khayyam

       

      1. plumbbill | May 21, 2007 06:03am | #9

        I install clean-outs for ease of access.

        I could see how one would want to use the rubber fittings for ease of access.

        Access  of taking apart the system is pretty much a non-issue with me, of all the DWV I do it comes down to 98% cast iron no-hub, & 1.9% ABS/PVC & .1% copper.

        I would never burry one of those preformed fittings in a wall or in the ground. When it plugs up the first rooter guy will drive his snake right through it.

        The main pic, has a legal "P" trap, the inset pic to the left is the "S" trap I was talking to Gene about, which I have seen more in pics than I ever have in real life, & I don't know where they are legal.I fear no man & only one GOD. Me

Log in or create an account to post a comment.

Sign up Log in

Become a member and get full access to FineHomebuilding.com

Video Shorts

Categories

  • Business
  • Code Questions
  • Construction Techniques
  • Energy, Heating & Insulation
  • General Discussion
  • Help/Work Wanted
  • Photo Gallery
  • Reader Classified
  • Tools for Home Building

Discussion Forum

Recent Posts and Replies

  • |
  • |
  • |
  • |
  • |
  • |
View More Create Post

Up Next

Video Shorts

Featured Story

Choosing a Paintbrush

Tips for picking the right paintbrush based on paint type, surface, and personal comfort.

Featured Video

Video: Build a Fireplace, Brick by Brick

Watch mason Mike Mehaffey construct a traditional-style fireplace that burns well and meets current building codes.

Related Stories

  • Podcast Episode 695: Saving Bricks, Cut-and-Cobble Insulation, and Waterproofing Foundations
  • FHB Podcast Segment: Waterproofing Below-Grade Foundation Walls
  • Midcentury Home for a Modern Family
  • The New Old Colonial

Highlights

Fine Homebuilding All Access
Fine Homebuilding Podcast
Tool Tech
Plus, get an extra 20% off with code GIFT20

"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Fine Homebuilding Magazine

  • Issue 333 - August/September 2025
    • A Practical Perfect Wall
    • Landscape Lighting Essentials
    • Repairing a Modern Window Sash
  • Issue 332 - July 2025
    • Custom Built-ins With Job-Site Tools
    • Fight House Fires Through Design
    • Making the Move to Multifamily
  • Issue 331 - June 2025
    • A More Resilient Roof
    • Tool Test: You Need a Drywall Sander
    • Ducted vs. Ductless Heat Pumps
  • Issue 330 - April/May 2025
    • Deck Details for Durability
    • FAQs on HPWHs
    • 10 Tips for a Long-Lasting Paint Job
  • Issue 329 - Feb/Mar 2025
    • Smart Foundation for a Small Addition
    • A Kominka Comes West
    • Making Small Kitchens Work

Fine Home Building

Newsletter Sign-up

  • Fine Homebuilding

    Home building tips, offers, and expert advice in your inbox.

  • Green Building Advisor

    Building science and energy efficiency advice, plus special offers, in your inbox.

  • Old House Journal

    Repair, renovation, and restoration tips, plus special offers, in your inbox.

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters

Follow

  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X
  • Fine Homebuilding

    Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.

    Start Free Trial Now
    • Facebook
    • Instagram
    • X
    • LinkedIn
  • GBA Prime

    Get instant access to the latest developments in green building, research, and reports from the field.

    Start Free Trial Now
    • Facebook
    • YouTube
  • Old House Journal

    Learn how to restore, repair, update, and decorate your home.

    Subscribe Now
    • Facebook
    • Instagram
    • X

Membership & Magazine

  • Online Archive
  • Start Free Trial
  • Magazine Subscription
  • Magazine Renewal
  • Gift a Subscription
  • Customer Support
  • Privacy Preferences
  • About
  • Contact
  • Advertise
  • Careers
  • Terms of Use
  • Site Map
  • Do not sell or share my information
  • Privacy Policy
  • Accessibility
  • California Privacy Rights

© 2025 Active Interest Media. All rights reserved.

Fine Homebuilding receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.

  • Home Group
  • Antique Trader
  • Arts & Crafts Homes
  • Bank Note Reporter
  • Cabin Life
  • Cuisine at Home
  • Fine Gardening
  • Fine Woodworking
  • Green Building Advisor
  • Garden Gate
  • Horticulture
  • Keep Craft Alive
  • Log Home Living
  • Military Trader/Vehicles
  • Numismatic News
  • Numismaster
  • Old Cars Weekly
  • Old House Journal
  • Period Homes
  • Popular Woodworking
  • Script
  • ShopNotes
  • Sports Collectors Digest
  • Threads
  • Timber Home Living
  • Traditional Building
  • Woodsmith
  • World Coin News
  • Writer's Digest
Active Interest Media logo
X
X
This is a dialog window which overlays the main content of the page. The modal window is a 'site map' of the most critical areas of the site. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page.

Main Menu

  • How-To
  • Design
  • Tools & Materials
  • Video
  • Blogs
  • Forum
  • Project Guides
  • Reader Projects
  • Magazine
  • Members
  • FHB House

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Podcasts

  • FHB Podcast
  • ProTalk

Webinars

  • Upcoming and On-Demand

Popular Topics

  • Kitchens
  • Business
  • Bedrooms
  • Roofs
  • Architecture and Design
  • Green Building
  • Decks
  • Framing
  • Safety
  • Remodeling
  • Bathrooms
  • Windows
  • Tilework
  • Ceilings
  • HVAC

Magazine

  • Current Issue
  • Past Issues
  • Magazine Index
  • Subscribe
  • Online Archive
  • Author Guidelines

All Access

  • Member Home
  • Start Free Trial
  • Gift Membership

Online Learning

  • Courses
  • Project Guides
  • Reader Projects
  • Podcast

More

  • FHB Ambassadors
  • FHB House
  • Customer Support

Account

  • Log In
  • Join

Newsletter

Get home building tips, offers, and expert advice in your inbox

Signing you up...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
See all newsletters
See all newsletters

Follow

  • X
  • YouTube
  • instagram
  • facebook
  • pinterest
  • Tiktok

Join All Access

Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features.

Start Your Free Trial

Subscribe

FHB Magazine

Start your subscription today and save up to 70%

Subscribe

Enjoy unlimited access to Fine Homebuilding. Join Now

Already a member? Log in

We hope you’ve enjoyed your free articles. To keep reading, become a member today.

Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine.

Start your FREE trial

Already a member? Log in

Privacy Policy Update

We use cookies, pixels, script and other tracking technologies to analyze and improve our service, to improve and personalize content, and for advertising to you. We also share information about your use of our site with third-party social media, advertising and analytics partners. You can view our Privacy Policy here and our Terms of Use here.

Cookies

Analytics

These cookies help us track site metrics to improve our sites and provide a better user experience.

Advertising/Social Media

These cookies are used to serve advertisements aligned with your interests.

Essential

These cookies are required to provide basic functions like page navigation and access to secure areas of the website.

Delete My Data

Delete all cookies and associated data