Plumbing Forum - Professional & DIY Plumbing Forum > General Plumbing Discussion > General Plumbing Help > Is Disposer Causing Water to Exit Air Gap?


Help Support Plumbing Forums by donating using the link above or becoming a Supporting Member.
Reply
 
Thread Tools Display Modes
Old 10-19-2017, 07:47 PM   #1
SuperTed
Junior Member
 
Join Date: Oct 2017
Posts: 5
Liked 1 Times on 1 Posts

Default Is Disposer Causing Water to Exit Air Gap?

Good Afternoon!

We have a double kitchen sink. The disposer is under the right sink. The dishwasher is to the left of the sink, with the air gap through the counter.

A couple months ago, water started exiting the air gap. This problem persists, despite many attempts to address the issue. The water does not escape as soon as the dishwasher drains. It appears to drain past the air gap and to the disposer just fine. From there, it appears the water is entering the disposer much faster than it is exiting. The result is that after about 30 seconds of the dishwasher draining, water exits the air gap. Occasionally it is about a quarter of a cup, but most times it is less than that. Also, if the stopper is in the disposer side of the sink, the the air gap becomes a gusher pretty quickly.

Neither side of the sink seems to be draining slowly, certainly nothing that is obvious or problematic. The disposer appears to be working fine.

Things I have tried to remedy the problem:
1) Replaced old air gap - no improvement;
2) Disassembled all the pipes - no obstructions;
3) Snaked the outlet pipe 15 feet - no resistance was noted;
4) Snaked the roof vent - obstruction cleared; and
5) LOTS of swearing - felt better briefly.

Questions:
1) Is it possible the disposer is the issue? It has been in service for only about five years, but I certainly would not have an issue with replacing it if it is the culprit.
2) Does that outlet pipe need to have any sort of slope to it? At the moment, it appears essentially horizontal.

Any and all suggestions and ideas are welcome.

Thank you!

I have attached pictures (hopefully...).


Kitchen Sink - left.jpg   Kitchen Sink - right.jpg   Kitchen Sink - under - left.jpg   Kitchen Sink - under - right.jpg  
SuperTed is offline  
 
Reply With Quote
Old 10-20-2017, 08:46 AM   #2
frodo
Just call me Macgyver
 
frodo's Avatar
 
Join Date: Sep 2014
Posts: 5,877
Liked 1836 Times on 1566 Posts
Likes Given: 379

Default

Click image for larger version

Name:	Kitchen Sink - left.jpg
Views:	19
Size:	116.1 KB
ID:	15370

first, remove piping, level disposal, it is pointed up
remove the according looking thing, buy a pipe with a flange on the end
buy a 6'' extension, and install under the tee,,cut the length to fit
raise the tee
for the silly air gap fitting remove it and discard hate them things

reroute the drain hose from the dishwasher like this
wire the hose to a sink clip as high as you can get it

Click image for larger version

Name:	rtaImage.png
Views:	18
Size:	17.2 KB
ID:	15371

buy either a cock hole cover
https://www.plumbingsupply.com/sinkholecovers.html
or a soap dispenser

to cover up the hole where the silly vent was


__________________


My advice is free, If I have helped you and you wish to help the site out with a gift
use this link
http://www.plumbingforums.com/forum/...faq=supporting
frodo is offline  
phishfood Likes This 
Reply With Quote
Old 10-20-2017, 12:08 PM   #3
SuperTed
Junior Member
 
Join Date: Oct 2017
Posts: 5
Liked 1 Times on 1 Posts

Default

Thanks, Frodo! I'll take a crack at it this weekend.
SuperTed is offline  
 
Reply With Quote
Old 10-20-2017, 02:06 PM   #4
SuperTed
Junior Member
 
Join Date: Oct 2017
Posts: 5
Liked 1 Times on 1 Posts

Default

Okay, quick follow up question...

How do I level a disposal?
SuperTed is offline  
 
Reply With Quote
Old 10-20-2017, 03:26 PM   #5
frodo
Just call me Macgyver
 
frodo's Avatar
 
Join Date: Sep 2014
Posts: 5,877
Liked 1836 Times on 1566 Posts
Likes Given: 379

Default

the basket strainer is pushed to one side of the hole in the sink
center the disposal in the hole
__________________


My advice is free, If I have helped you and you wish to help the site out with a gift
use this link
http://www.plumbingforums.com/forum/...faq=supporting
frodo is offline  
 
Reply With Quote
Old 10-20-2017, 04:04 PM   #6
SuperTed
Junior Member
 
Join Date: Oct 2017
Posts: 5
Liked 1 Times on 1 Posts

Default

So, it is as easy as I thought. Thanks again!
SuperTed is offline  
 
Reply With Quote
Old 10-23-2017, 12:55 AM   #7
SuperTed
Junior Member
 
Join Date: Oct 2017
Posts: 5
Liked 1 Times on 1 Posts

Default

The repairs have all been done, and everything is working like a charm. Thanks again, Frodo!

Ted


SuperTed is offline  
havasu Likes This 
Reply With Quote
Reply


Thread Tools
Display Modes

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
water pipe non-use causing no flow ? landog General Plumbing Help 0 12-07-2016 06:13 PM
Plumbers STUMPED!! Irrigation causing Airlock in Hot Water tank shadowstar57 General Plumbing Help 15 04-25-2016 01:53 PM
Preferred side for disposer? bweatherby General Plumbing Help 5 02-27-2016 11:46 PM
Filter causing water pressure issues, need your suggestion! sfoxis Pumps and Wells 18 12-23-2015 01:52 PM
Outdoor shower causing loss of hot water bdgood General Plumbing Help 7 11-18-2011 01:50 AM



Newest Threads