# Dishwasher not connected to disposer **URL:** \ **Category:** Plumbing Inspections\ **Created:** [April 19, 2016, 7:52pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756 "2016-04-19T19:52:07Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![handerson2](https://avatars.discourse-cdn.com/v4/letter/h/c2a13f/32.png) [@handerson2](https://forum.nachi.org/u/handerson2)\ **Post date:** [April 19, 2016, 7:52pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/1 "2016-04-19T19:52:07Z")
Inspected a new build today and they connected the dishwasher drain to a dishwasher tailpiece instead of the disposer. I know this is a correct installation but I’m annoyed that they didn’t just connect it to the disposer. Am I out of line here? What are your thoughts? Would anyone call it out? Thanks guys. ![20160419_111151_001.jpg](https://global.discourse-cdn.com/internachi/original/3X/c/f/cf30944789efcda996b4e2a67a302ab5767bc97e.jpeg) ---
**Author:** ![sstanczyk](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/sstanczyk/32/175851_2.png) [@sstanczyk](https://forum.nachi.org/u/sstanczyk)\ **Post date:** [April 19, 2016, 8:04pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/2 "2016-04-19T20:04:12Z")
Some jurisdictions do not allow connection to the garbage disposal. You would have to check the home’s jurisdiction for more information. ---
**Author:** ![plesieur](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/plesieur/32/59455_2.png) [@plesieur](https://forum.nachi.org/u/plesieur)\ **Post date:** [April 19, 2016, 8:10pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/3 "2016-04-19T20:10:26Z")
Looks ok to me. In Minnesota I would not bring attention to it. ---
**Author:** ![belliott](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/belliott/32/57038_2.png) [@belliott](https://forum.nachi.org/u/belliott)\ **Post date:** [April 19, 2016, 8:53pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/4 "2016-04-19T20:53:03Z")
Should never ever be connected to a disposal except where people like bacteria and stoppage . Were is the required air gap? ---
**Author:** ![plesieur](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/plesieur/32/59455_2.png) [@plesieur](https://forum.nachi.org/u/plesieur)\ **Post date:** [April 19, 2016, 9:04pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/5 "2016-04-19T21:04:29Z")
Thought all you need in Illinois is a high loop. Didn’t they remove the requirement for an air gap? ---
**Author:** ![plesieur](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/plesieur/32/59455_2.png) [@plesieur](https://forum.nachi.org/u/plesieur)\ **Post date:** [April 19, 2016, 9:05pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/6 "2016-04-19T21:05:34Z")
Thought all you need in Illinois is a high loop. Didn’t they remove the requirement for an air gap? The air gap is against the back wall of the cabinet. Ooops, I just noticed there is no vent to exterior (roof), not allowed in Minnesota. ---
**Author:** ![cevans](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/cevans/32/244194_2.png) [@cevans](https://forum.nachi.org/u/cevans)\ **Post date:** [April 19, 2016, 9:34pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/7 "2016-04-19T21:34:38Z")
The high loop isn’t adequate and the AAV is too low, so you can still complain about other things. Don’t forget to check fo handle ties on the breakers serving the shared receptacle yoke along with AFCI and GFCI. ---
**Author:** ![plesieur](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/plesieur/32/59455_2.png) [@plesieur](https://forum.nachi.org/u/plesieur)\ **Post date:** [April 19, 2016, 9:43pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/8 "2016-04-19T21:43:41Z")
No AAV’s in Minnesota inspected plumbing but Menards and Home Depots sells them. Never installed an AAV in 35 years I wouldn’t know the proper placement but I’m sure the instructions are on the package. I guess that’s 1 duplex receptacle with 2 separate circuits. Legal as far as I know. ---
**Author:** ![handerson2](https://avatars.discourse-cdn.com/v4/letter/h/c2a13f/32.png) [@handerson2](https://forum.nachi.org/u/handerson2)\ **Post date:** [April 19, 2016, 10:52pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/9 "2016-04-19T22:52:10Z")
> [@](#): > > The ASSE 1006 standard for residential and domestic-type dishwashing machines is the requirement for the protection of the potable water supply against backflow. If the unit conforms to the standard, there is an internal integral backflow prevention device installed, and additional precautions are unnecessary. From InterNachi’s residential plumbing course. Gotta protect against that backflow! ---
**Author:** ![handerson2](https://avatars.discourse-cdn.com/v4/letter/h/c2a13f/32.png) [@handerson2](https://forum.nachi.org/u/handerson2)\ **Post date:** [April 19, 2016, 11:49pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/10 "2016-04-19T23:49:02Z")
> [@cevans](#): > > The high loop isn’t adequate and the AAV is too low, so you can still complain about other things. Don’t forget to check fo handle ties on the breakers serving the shared receptacle yoke along with AFCI and GFCI. Always appreciate the advise. Electrical was a little sloppy but fine (black marker to denote a hot neutral). Oh, except that every bathroom had reversed hot neutral connections… Probably just one miss wired box along the way, glad I don’t have to track down that mess. And my customers didn’t think they needed to have their new build inspected… ---
**Author:** ![cevans](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/cevans/32/244194_2.png) [@cevans](https://forum.nachi.org/u/cevans)\ **Post date:** [April 20, 2016, 2:47am UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/11 "2016-04-20T02:47:47Z")
> [@handerson2](#): > > Always appreciate the advise. Electrical was a little sloppy but fine (black marker to denote a hot neutral). Oh, except that every bathroom had reversed hot neutral connections… Probably just one miss wired box along the way, glad I don’t have to track down that mess. I’m surprised to hear this because I have yet to see a pair AFCI/GFCI combo breakers with a common trip tie and under NEC 2014 both sockets on that receptacle are required to be both AFCI and GFCI protected and since they share a common yoke, the breaker handles must be tied together, even if they are not a multi-wire circuit (both breakers must be off for it to be safe to work on either circuit on that receptacle). ---
**Author:** ![handerson2](https://avatars.discourse-cdn.com/v4/letter/h/c2a13f/32.png) [@handerson2](https://forum.nachi.org/u/handerson2)\ **Post date:** [April 20, 2016, 2:55am UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/12 "2016-04-20T02:55:05Z")
> [@cevans](#): > > I’m surprised to hear this because I have yet to see a pair AFCI/GFCI combo breakers with a common trip tie and under NEC 2014 both sockets on that receptacle are required to be both AFCI and GFCI protected and since they share a common yoke, the breaker handles must be tied together, even if they are not a multi-wire circuit (both breakers must be off for it to be safe to work on either circuit on that receptacle). AFCI in the panel, GFCI at each location via GFCI outlets. Thankfully Columbus Ohio has yet to fully adopt the 2014 NEC. Not excited to deal with that mess yet. ---
**Author:** ![jcarlson](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/jcarlson/32/57038_2.png) [@jcarlson](https://forum.nachi.org/u/jcarlson)\ **Post date:** [April 20, 2016, 3:01am UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/13 "2016-04-20T03:01:53Z")
> [@handerson2](#): > > Inspected a new build today and they connected the dishwasher drain to a dishwasher tailpiece instead of the disposer. I know this is a correct installation but I’m annoyed that they didn’t just connect it to the disposer. Am I out of line here? What are your thoughts? Would anyone call it out? > > Thanks guys. > > ![20160419_111151_001.jpg](https://global.discourse-cdn.com/internachi/original/3X/c/f/cf30944789efcda996b4e2a67a302ab5767bc97e.jpeg) I’ve seen this multiple times in my neck of the woods… ---
**Author:** ![belliott](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/belliott/32/57038_2.png) [@belliott](https://forum.nachi.org/u/belliott)\ **Post date:** [April 20, 2016, 3:31am UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/14 "2016-04-20T03:31:22Z")
> [@plesieur](#): > > Thought all you need in Illinois is a high loop. Didn’t they remove the requirement for an air gap? > > The air gap is against the back wall of the cabinet. > > Ooops, I just noticed there is no vent to exterior (roof), not allowed in Minnesota. No Studor stuff in these parts we use real state licensed Plumbers ] and what is with that cooper head snake at bottom of the cabinet .That should be copper water supply only not copperhead snake ] ---
**Author:** ![jfrederick](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/jfrederick/32/58314_2.png) [@jfrederick](https://forum.nachi.org/u/jfrederick)\ **Post date:** [April 20, 2016, 10:41am UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/15 "2016-04-20T10:41:25Z")
> [@cevans](#): > > the AAV is too low How so? ---
**Author:** ![wthacker2](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/wthacker2/32/394176_2.png) [@wthacker2](https://forum.nachi.org/u/wthacker2)\ **Post date:** [September 1, 2025, 2:20pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/16 "2025-09-01T14:20:50Z")
Im having an issue with my home I just started renting. So I have never seen the dishwasher not hooked to the disposal and it’s spewing out water and food but the dishwasher seems to be hooked up, is this supposed to be capped off if bypassed and done properly? ---
**Author:** ![dfreund](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/dfreund/32/339074_2.png) [@dfreund](https://forum.nachi.org/u/dfreund)\ **Post date:** [September 1, 2025, 9:33pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/17 "2025-09-01T21:33:24Z")
> [@wthacker2](#): > > Im having an issue with my home I just started renting. So I have never seen the dishwasher not hooked to the disposal and it’s spewing out water and food but the dishwasher seems to be hooked up Where is it spewing out water and food? If you feel you have an issue, contact your landlord as they are typically responsible for repairs unless your rental/lease agreement stipulates otherwise. ---
**Author:** ![bgromicko1](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/bgromicko1/32/349314_2.png) [@bgromicko1](https://forum.nachi.org/u/bgromicko1)\ **Post date:** [September 1, 2025, 10:15pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/18 "2025-09-01T22:15:36Z")
The InterNACHI® Dishwasher Inspection Checklist is at [Home Inspection Checklists - InterNACHI®](https://www.nachi.org/home-inspection-checklist.htm) (scroll down that page). ---
**Author:** ![sfetty](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/sfetty/32/331195_2.png) [@sfetty](https://forum.nachi.org/u/sfetty)\ **Post date:** [September 1, 2025, 10:51pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/19 "2025-09-01T22:51:47Z")
> [@wthacker2](#): > > dishwasher seems to be hooked up One possible (common) scenario is that someone installed the disposal and didn’t “knockout” the drain plug before connecting the dishwasher. As David said, let your landlord know ASAP. ---
**Author:** ![kleonard](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/kleonard/32/170953_2.png) [@kleonard](https://forum.nachi.org/u/kleonard)\ **Post date:** [September 1, 2025, 11:58pm UTC](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756/20 "2025-09-01T23:58:54Z")
> [@wthacker2](#): > > the disposal and it’s spewing out water and food From where, under the sink or out of the disposal drain opening in the sink? [Next page](https://forum.nachi.org/t/dishwasher-not-connected-to-disposer/105756.md?page=2)