Go Back   InterNACHI Inspection Forum > >

Notices

Plumbing Inspections Contains discussions about plumbing.

Reply
 
Thread Tools
  #1  
Old 11/9/07, 10:02 AM
Jeffrey Wortham Jeffrey Wortham is offline
InterNACHI Member
 
Join Date: Jun 2006
Location: Bolingbrook, IL
Posts: 720
Default Double Trapped?

Morning all.

Wrote this up as double-trapped but now I am having my doubts if it's an issue.

Any input would be appreciated.

Double Trapped?-pa270034-jpg

And after reading the Illinois plumbing Code and talking with the local code enforcement officer, I now know I made a bad call.

Luckily, I never got in a argument with the builder!



Jeffrey Wortham
ANS Inspections, Inc.
www.ansinspections.com
630.276.8440
638 Langford Drive
Bolingbrook, IL 60440
NACHI ID:04050181

Last edited by jwortham1; 11/9/07 at 10:32 AM..
Reply With Quote
  #2  
Old 11/9/07, 10:34 AM
Michael Larson's Avatar
Michael Larson Michael Larson is online now
Certified Professional Inspector (CPI)
 
Join Date: May 2006
Location: Hudson, WI including the Twin Cities of MN
Posts: 75,356
Default Re: Double Trapped?

Quote:
Originally Posted by jwortham1
Morning all.

Wrote this up as double-trapped but now I am having my doubts if it's an issue.

Any input would be appreciated.

Attachment 15899

And after reading the Illinois plumbing Code and talking with the local code enforcement officer, I now know I made a bad call.

Luckily, I never got in a argument with the builder!
Double trap is when the fixture drains through 2 traps in series. I don't see anyting wrong in your photo.
Reply With Quote
  #3  
Old 11/9/07, 10:41 AM
Jeffrey Wortham Jeffrey Wortham is offline
InterNACHI Member
 
Join Date: Jun 2006
Location: Bolingbrook, IL
Posts: 720
Default Re: Double Trapped?

I looked at the trap in the rear and could see a possibility, however remote, that water flowing from the garbage disposal could suck the second trap dry.

But you are correct and I will explain that to my client this morning at his final walk-through.

Thanks for the input.



Jeffrey Wortham
ANS Inspections, Inc.
www.ansinspections.com
630.276.8440
638 Langford Drive
Bolingbrook, IL 60440
NACHI ID:04050181
Reply With Quote
  #4  
Old 11/9/07, 11:07 AM
Jeffrey R. Pope, CMI's Avatar
Jeffrey R. Pope, CMI Jeffrey R. Pope, CMI is offline
Certified Master Inspector ®
 
Join Date: Aug 2003
Location: Santa Clarita, CA
Posts: 15,584
Default Re: Double Trapped?

That set-up is allowed by the IRC, but prohibited by the UPC. It would not be allowed in my State, not because it's a "double trap" (it's not), but because two traps cannot share the same trap-arm under UPC requirements.



IF YOUR INSPECTOR IS NOT USING THERMAL IMAGING, YOU'RE NOT GETTING THE WHOLE PICTURE «

Jeff Pope
JPI Home Inspection Service
(661) 212-0738
Los Angeles, Santa Clarita & Antelope Valley CA
Reply With Quote
  #5  
Old 11/9/07, 11:17 AM
Jeffrey Wortham Jeffrey Wortham is offline
InterNACHI Member
 
Join Date: Jun 2006
Location: Bolingbrook, IL
Posts: 720
Default Re: Double Trapped?

Thanks Jeff.

I was just reading a discussion you had had about this on a plumbing board.

Very informative and I have since updated my notes so I won't refer to this as a double-trap anymore. Since, it's not. Accuracy is important!



Jeffrey Wortham
ANS Inspections, Inc.
www.ansinspections.com
630.276.8440
638 Langford Drive
Bolingbrook, IL 60440
NACHI ID:04050181
Reply With Quote
  #6  
Old 11/9/07, 11:26 AM
Jeffrey R. Pope, CMI's Avatar
Jeffrey R. Pope, CMI Jeffrey R. Pope, CMI is offline
Certified Master Inspector ®
 
Join Date: Aug 2003
Location: Santa Clarita, CA
Posts: 15,584
Default Re: Double Trapped?

Quote:
Originally Posted by jwortham1
I was just reading a discussion you had had about this on a plumbing board.
If that's the thread I'm thinking of, I got hammered for several days before the "verdict" came in.



IF YOUR INSPECTOR IS NOT USING THERMAL IMAGING, YOU'RE NOT GETTING THE WHOLE PICTURE «

Jeff Pope
JPI Home Inspection Service
(661) 212-0738
Los Angeles, Santa Clarita & Antelope Valley CA
Reply With Quote
  #7  
Old 11/9/07, 11:31 AM
Jeffrey Wortham Jeffrey Wortham is offline
InterNACHI Member
 
Join Date: Jun 2006
Location: Bolingbrook, IL
Posts: 720
Default Re: Double Trapped?

Yep. You did.

Wish I had read it BEFORE I sent out the report though.

All good though. Final walk-through today so I'll explain my bad call while I am there.



Jeffrey Wortham
ANS Inspections, Inc.
www.ansinspections.com
630.276.8440
638 Langford Drive
Bolingbrook, IL 60440
NACHI ID:04050181
Reply With Quote
  #8  
Old 11/9/07, 12:21 PM
William J. Decker's Avatar
William J. Decker William J. Decker is offline
Certified Master Inspector ®
 
Join Date: Nov 2004
Location: Skokie, IL
Posts: 8,144
Default Re: Double Trapped?

That's fine, Jeff.

BTW: did you know that draining a dishwasher through a garbage disposer is not allowed in the Illinois Plumbing Code? I found that out recently.



Will Decker, CMI
ILL License # 450.0002240
Board Certified Master Inspector
Decker Home Services, LLC
Chicago and Northern Suburban Home Inspections
Office: (847) 676-8393
Cell: (847) 609-2345
Home: (847) 673-2702

wjd@DeckerHomeServices.com
www.DeckerHomeServices.com

Learn, Educate, Serve and have fun doing it!
Reply With Quote
  #9  
Old 11/9/07, 12:25 PM
Michael Larson's Avatar
Michael Larson Michael Larson is online now
Certified Professional Inspector (CPI)
 
Join Date: May 2006
Location: Hudson, WI including the Twin Cities of MN
Posts: 75,356
Default Re: Double Trapped?

Quote:
Originally Posted by jpope
That set-up is allowed by the IRC, but prohibited by the UPC. It would not be allowed in my State, not because it's a "double trap" (it's not), but because two traps cannot share the same trap-arm under UPC requirements.
Jeff, that's good info.
Would you please site the sections for both the UPC and IRC where this issue is covered?
Reply With Quote
  #10  
Old 11/9/07, 12:26 PM
Jeffrey Wortham Jeffrey Wortham is offline
InterNACHI Member
 
Join Date: Jun 2006
Location: Bolingbrook, IL
Posts: 720
Default Re: Double Trapped?

Lots of interesting things in the Illinois Plumbing Code.



Here's what you referred to though.

Section 890.770 Dishwashing Machines

a) Domestic Dishwasher (Private Residence). When a domestic dishwashing machine drain line is connected to the house side of a trap from a sink, the drain from the dishwasher shall be carried up to the underside of the spill rim of the sink. Dishwashing machines shall discharge separately into a trap or tail piece of the kitchen sink and shall not connect to the food waste disposal unit.



Jeffrey Wortham
ANS Inspections, Inc.
www.ansinspections.com
630.276.8440
638 Langford Drive
Bolingbrook, IL 60440
NACHI ID:04050181
Reply With Quote
  #11  
Old 11/9/07, 3:24 PM
Jeffrey R. Pope, CMI's Avatar
Jeffrey R. Pope, CMI Jeffrey R. Pope, CMI is offline
Certified Master Inspector ®
 
Join Date: Aug 2003
Location: Santa Clarita, CA
Posts: 15,584
Default Re: Double Trapped?

Quote:
Originally Posted by mlarson
Would you please site the sections for both the UPC and IRC where this issue is covered?
UPC 1001.1 Each plumbing fixture, excepting those having integral traps or as permitted in Section 1001.2, shall be separately trapped by an approved type waterseal trap. Not more than one (1) trap shall be permitted on a trap arm.

The IPC references are 908.1 & 908.2. I don't have the IPC handy, but I'll post it when I get back in the office. . .



IF YOUR INSPECTOR IS NOT USING THERMAL IMAGING, YOU'RE NOT GETTING THE WHOLE PICTURE «

Jeff Pope
JPI Home Inspection Service
(661) 212-0738
Los Angeles, Santa Clarita & Antelope Valley CA
Reply With Quote
  #12  
Old 11/9/07, 4:39 PM
Jeffrey R. Pope, CMI's Avatar
Jeffrey R. Pope, CMI Jeffrey R. Pope, CMI is offline
Certified Master Inspector ®
 
Join Date: Aug 2003
Location: Santa Clarita, CA
Posts: 15,584
Default Re: Double Trapped?

IPC 908.1 Individual vent as common vent. An individual vent is permitted to vent two traps or trapped fixtures as a common vent. The traps or trapped fixtures being common vented shall be located on the same floor level.

IPC 908.2 Connection at the same level. Where the fixture drains being common vented connect at the same level, the vent connection shall be at the interconnection of the fixture drains or downstream of the interconnection.



IF YOUR INSPECTOR IS NOT USING THERMAL IMAGING, YOU'RE NOT GETTING THE WHOLE PICTURE «

Jeff Pope
JPI Home Inspection Service
(661) 212-0738
Los Angeles, Santa Clarita & Antelope Valley CA
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Double Tap Question ekartal6 Electrical Inspections 6 10/22/07 7:30 AM
Double Tap Questions jkogel Electrical Inspections 6 6/28/07 9:46 PM
Double Tap! wward Electrical Inspections 12 2/22/07 5:39 PM
Double Tray Ceiling Crack jwilliams7 Interior Inspections 6 6/21/06 7:33 AM
Double Taps rwand1 Canadian Home Inspectors 39 3/29/06 7:16 PM

All times are GMT -4. The time now is 5:29 AM.
no new posts