Thank you to all the plumbing professionals who offer their advice and expertise
Welcome to Plbg.com

Over 550,000 Posts in over 160k Threads

Welcome to Plbg.com (aka: PlumbingForum.com) we are the most popular plumbing information sharing, advice, DIY and educational forum on the Web. Ask any toilet, sink, faucet, pump, water quality, and plumbing related questions. Please refrain from asking where to purchase a product, business, pricing, or legal questions, for contractor referrals, or any questions not related to plumbing. Keep all positive and no advertising. Our largest sponsor and best online plumbing supplier is: Buy plumbing supplies online 

Post New
Search
Log In
How to Show Images
Newest Subjects
 Sink only drains when running the garbage disposal
Author: tanyatraveling (HI)

Help! My kitchen sink only drains when I run the garbage disposal. I assumed there was a clog in the drain line so I took off the p-trap and snaked it several times. Also removed the garbage disposal and checked the line to the overflow vent next to the faucet. I'm on the 5th floor of an older, concrete condo and have a single sink. None of the units above me are having problems. Any ideas? I would be so grateful if someone could help me figure this one out.

Post Reply

 Re: Sink only drains when running the garbage disposal
Author: royboy (SC)

Perhaps the grinding slots are plugged. Try running a couple of handfulls of ice cubes through it with the water running.

Post Reply

 Re: Sink only drains when running the garbage disposal
Author: hj (AZ)

That could mean that YOUR drain in the wall is plugged and the disposer is acting as a pump and pushing the water up and over through the vent into a pipe that does drain.

Post Reply

 Re: Sink only drains when running the garbage disposal
Author: HytechPlumber (LA)

It is very possible that your disposal needs to be cleaned out thouroughly. Sometimes hitting it with the sink sprayer will help dislodge some of the crud. Do not use any harsh chemicals. If you removed it you can take it outside and hose it out very well with some good hose pressure.

The other possibility would be that the sink arm is partially stopped up and disposal is pushing it through but usually it would back up all the time if that were the case.


... X....... X ... Good Luck .....

Post Reply

 Re: Sink only drains when running the garbage disposal
Author: Nayman's Drain Services (Non-US)

go past the P-trap into the wall. Hopefully your "snake" will go down to clear any blockage

Post Reply





Please note:
  • Inappropriate messages or blatant advertising will be deleted. We cannot be held responsible for bad or inadequate advice.
  • Plbg.com has no control over external content that may be linked to from messages posted here. Please follow external links with caution.
  • Plbg.com is strictly for the exchange of plumbing related advice and NOT to ask about pricing/costs, nor where to find a product (try Google), nor how to operate or promote a business, nor for ethics (law) and the like questions.
  • Plbg.com is also not a place to ask radiant heating (try HeatingHelp.com), electrical or even general construction type questions. We are exclusively for plumbing questions.

Search for plumbing parts on our sponsor's site:




Special thanks to our sponsor:
Buy plumbing supplies online


Copyright© 2015 Plbg.com. All Rights Reserved.