Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-16-2012, 09:40 PM   #1
Newbie
 
Join Date: Apr 2012
Posts: 3
Share |
Default

Help! How far above does the gbge disposal tube...


OK folks, I need help.

How far does the garbage disposal tube / drain need to be above the drain pipe? I can't move the drain pipe down down and I'm trying to keep the disposal AND undermount sink. Someone told me the center point of the disposal drain needs to be higher than the center of the drain pipe. Is that enough?

neguy32 is offline   Reply With Quote
Old 04-16-2012, 09:51 PM   #2
Doing it myself
 
Alan's Avatar
 
Join Date: Apr 2006
Location: Crescent City, CA
Posts: 3,744
Send a message via AIM to Alan Send a message via MSN to Alan
Default

Help! How far above does the gbge disposal tube...


Typical kitchen drain installations are approximately 16" off the floor.

Depending on the depth of the bowls you may need to be lower than this.

How high above the drain in the wall is your disposal outlet?

Why can't you lower the drain ?

__________________
Journeyman Plumber
Alan is offline   Reply With Quote
Old 04-16-2012, 10:07 PM   #3
Newbie
 
Join Date: Apr 2012
Posts: 3
Default

Help! How far above does the gbge disposal tube...


Thanks for responding

I live in a very old building and I'm part of a strict condo assocation. Lowering the wall drain would require a permit and potentially a lot of $$$ to a plumber.

The drain outlet is 16'' off the floor. I have an 8'' bowl undermount set to go in a standard cabinet. The flange and disposal take me down another 6 3/4.''

So the 8'' bowl and the disposal takes me down to 14 3/4. It's 17'' to the center of the wall drain but 14'' to the coupling for the disposal. If I modify the wall drain coupling (cut it so the disposal goes lower), how much higher does it need to be than the wall drain? Any of this make sense?
neguy32 is offline   Reply With Quote
Old 04-16-2012, 10:15 PM   #4
Doing it myself
 
Alan's Avatar
 
Join Date: Apr 2006
Location: Crescent City, CA
Posts: 3,744
Send a message via AIM to Alan Send a message via MSN to Alan
Default

Help! How far above does the gbge disposal tube...


Something doesn't seem right to me here. Are you measuring off the floor, or off the bottom of the cabinet?




Here's what it should look like :

http://www.plumbingdenvercolorado.co...gedisposal.jpg

As you can see, the p-trap can come up a bit more in this photo. It's hard to tell exactly what dimensions are going to work without being there. If the drain is 16" off the floor and you have an 8" deep sink it should hook up.

Normally, I just start test fitting parts to see if they will work in retro situations because most of the time we are called to reconnect something that was disconnected by someone else without 1 thought whether or not the drain needed to be lowered.
__________________
Journeyman Plumber
Alan is offline   Reply With Quote
Old 04-16-2012, 10:35 PM   #5
Newbie
 
Join Date: Apr 2012
Posts: 3
Default

Help! How far above does the gbge disposal tube...


I'm sorry, my wall drain is 17 inches off the floor, 12 inches off the cabinet floor.

To explain my situation better, I'm essentially going through what this guy is... See link here - http://www.terrylove.com/forums/show...l-amp-drainage. His dipsosal drain is just a hair higher than his wall drain. how much higher would it need to be to work effectively?
neguy32 is offline   Reply With Quote
Old 04-17-2012, 12:40 AM   #6
retired elect/hvac/plumb
 
plummen's Avatar
 
Join Date: Jan 2010
Location: south east of omaha/The island of misfit contractors
Posts: 2,895
Default

Help! How far above does the gbge disposal tube...


As long as you have fall in the waste arm between trap and santee you should be fine

__________________
"facts" have no relevance to this discusion
Posting from a concrete bunker under a non descript barn
plummen is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Decommissioning Knob and Tube Perry401 Electrical 7 05-14-2014 10:04 PM
switch to garbage disposal question tard01 Electrical 64 03-30-2012 05:19 PM
6/3 wire through smurf tube? anygren Electrical 13 08-14-2010 07:23 AM
Water leaking from under disposal/Installing new disposal quadari Plumbing 6 06-29-2010 11:39 AM
disposal sink flange without the disposal? wolfv Plumbing 2 04-29-2010 06:24 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.