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  1. #1
    Join Date
    Mar 2007
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    Plano, Texas
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    4,170

    Default water filter sewer connection

    Can someone point me to the correct method of installation of a water filter to the sewer. This is specifically related to under sink reverse osmosis taps.
    I continually see a piercing saddle valve installed on the sink drain with no hint of any indirect connection fitting. In fact I saw the installation directions today with the fitting supplied pictured in the instructions.
    I would love to see a "correct" method of installation or some exception that makes this allowable.

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    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  2. #2
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
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    2,480

    Default Re: water filter sewer connection

    Quote Originally Posted by Jim Luttrall View Post
    Can someone point me to the correct method of installation of a water filter to the sewer. This is specifically related to under sink reverse osmosis taps.
    I continually see a piercing saddle valve installed on the sink drain with no hint of any indirect connection fitting. In fact I saw the installation directions today with the fitting supplied pictured in the instructions.
    I would love to see a "correct" method of installation or some exception that makes this allowable.
    Hi Jim,

    I see those all the time. The only thing that I can think of is the manufacturer's installation instructions would take precedence over code, assuming the filter and fittings are tested and listed. Even if they are fine, I still have problems with them and put them in the report.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  3. #3
    Join Date
    Mar 2007
    Location
    Garland, TX
    Posts
    622

    Default Re: water filter sewer connection

    Jim,
    have you/they seen these
    Check out our products

    badair http://www.adairinspection.com Garland, TX 75042 TREC # 4563
    Commercial-Residential-Construction-EIFS-Infrared Thermography
    life is the random lottery of events followed by numerous narrow escapes

  4. #4
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
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    5,005

    Default Re: water filter sewer connection

    The red discharge line should be installed on the vertical portion of the waste line (upstream of trap). Thats how the instructions on my unit require it to be installed.


  5. #5
    Join Date
    Mar 2007
    Location
    Plano, Texas
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    4,170

    Default Re: water filter sewer connection

    Quote Originally Posted by BARRY ADAIR View Post
    Jim,
    have you/they seen these
    Check out our products
    Thanks Barry, those reverse osmosis gaps should do the trick and will do away with the need to use the saddle tap on the drain line.


    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  6. #6
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
    Posts
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    Default Re: water filter sewer connection

    There is a built in air gap at the counter dispensing spigot in most units for the waste line which then runs to the drain line.


  7. #7
    Join Date
    Mar 2007
    Location
    Plano, Texas
    Posts
    4,170

    Default Re: water filter sewer connection

    Quote Originally Posted by Raymond Wand View Post
    The red discharge line should be installed on the vertical portion of the waste line (upstream of trap). Thats how the instructions on my unit require it to be installed.
    Not on this one. Diagram shows it in the horizontal line.
    Though, My take is that it is improper to use a saddle tap.
    Of course they have a "follow all local codes" clause in the instructions but then tell you how to do it improperly and even supply the parts.

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

  8. #8

    Default Re: water filter sewer connection

    In my home this connection is made similar to the dishwasher drain; emptying into the garbage disposal.

    MikeB.


  9. #9
    Join Date
    Sep 2007
    Location
    Fredericksburg, VA
    Posts
    885

    Default Re: water filter sewer connection

    Let's see, some part of a potable water line connected to a gray water drain pipe. I would want to see an air gap of some type. Manufacturer's installation instructions or not.

    The above statements are expressed solely as my opinion and in all probability will conflict with someone else's.
    Stu, Fredericksburg VA

  10. #10
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    26,250

    Default Re: water filter sewer connection

    Quote Originally Posted by Gunnar Alquist View Post
    the manufacturer's installation instructions would take precedence over code
    Actually, the more restrictive of the two rules.

    If the installation instructions are more restrictive, that takes precedence; however, if the code is more restrictive, then the code takes precedence.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  11. #11
    Join Date
    Feb 2009
    Location
    Southern Vancouver Island
    Posts
    4,547

    Default Re: water filter sewer connection

    Hello Jerry, could we have that in writing, please? "if the code is more restrictive, then the code takes precedence." __________________

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

  12. #12
    Join Date
    Sep 2007
    Location
    Fredericksburg, VA
    Posts
    885

    Default Re: water filter sewer connection

    Quote Originally Posted by John Kogel View Post
    Hello Jerry, could we have that in writing, please? "if the code is more restrictive, then the code takes precedence." __________________
    I pretty sure you can find that in the front of the IRC

    The above statements are expressed solely as my opinion and in all probability will conflict with someone else's.
    Stu, Fredericksburg VA

  13. #13
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,250

    Default Re: water filter sewer connection

    Quote Originally Posted by John Kogel View Post
    Hello Jerry, could we have that in writing, please? "if the code is more restrictive, then the code takes precedence." __________________
    I don't have the code with me, but ... hopefully ... everyone who uses tbe code knows where to find the section which states that the most restrictive shall apply.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

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