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DeafJam73
LSU Fan
Baton Rouge
Member since Sep 2010
14941 posts

Drain for washer machine backs up
The washer machine drains faster than the drain pipe can handle, causing it to back up. I don’t think it’s clogged. As soon as the water stops flowing it drains fine. What do I do?


wickowick
LSU Fan
Head of Island
Member since Dec 2006
40715 posts
 Online 

re: Drain for washer machine backs up
How old is the home? You either have a partial cliff or deteriorated drain lines


CottonWasKing
LSU Fan
4,8,15,16,23,42
Member since Jun 2011
21319 posts
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re: Drain for washer machine backs up
You could restrict the drain on the washer slowing down the flow


dakarx
Army Fan
Member since Sep 2018
1030 posts

re: Drain for washer machine backs up
I'd run a snake down the drain pipe first thing. Assuming at one point in time it flowed fast enough to not spill over. Sounds partially clogged.

You might be surprised at the amount of fibers that get washed out of each load depending on what is being washed. The tend to build up at joints in the pvc because of the sharp edges were sections are welded together.


DeafJam73
LSU Fan
Baton Rouge
Member since Sep 2010
14941 posts

re: Drain for washer machine backs up
The home is pretty old. Built in the 60s? What is a partial cliff?


DeafJam73
LSU Fan
Baton Rouge
Member since Sep 2010
14941 posts

re: Drain for washer machine backs up
How do I restrict the flow?


DeafJam73
LSU Fan
Baton Rouge
Member since Sep 2010
14941 posts

re: Drain for washer machine backs up
I tried running a snake, but the pipe makes this u shape at the bottom. I can’t get the snake to bend that way.


wickowick
LSU Fan
Head of Island
Member since Dec 2006
40715 posts
 Online 

re: Drain for washer machine backs up
Partial clog that my phone keeps auto correcting to partial cliff. If I was a betting man I bet that you have cast iron drain lines that are rusting out


CottonWasKing
LSU Fan
4,8,15,16,23,42
Member since Jun 2011
21319 posts
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re: Drain for washer machine backs up
quote:

How do I restrict the flow?


Modify your drain hose and neck the size down gradually. You’ll have to get creative.


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CottonWasKing
LSU Fan
4,8,15,16,23,42
Member since Jun 2011
21319 posts
 Online 

re: Drain for washer machine backs up
quote:

Partial clog that my phone keeps auto correcting to partial cliff. If I was a betting man I bet that you have cast iron drain lines that are rusting out


I had this problem 2 years ago. House built in the 40s still had a grey water line running somewhere in the back yard (never found exactly where the pipe went) the rest of the old cast iron plumbing had been redone with PEX but not the washing machine drain and kitchen sink for some reason and that line had partially collapsed. The plumber just went under the house cut the cast iron out and tied those pipes in with the newer plumbing


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ItzMe1972
Member since Dec 2013
2859 posts

re: Drain for washer machine backs up
Sounds like partial blockage on your main line.

If you can't make the turn wiht your snake, have a plumber do it. He can evaluate your situation.

A washing machine dumbs alot of water all at once.


wickowick
LSU Fan
Head of Island
Member since Dec 2006
40715 posts
 Online 

re: Drain for washer machine backs up
quote:

A washing machine dumbs alot of water all at once.


Yep, if you don’t fix it now, it will get worse and you will start having backups in other locations l. Make sure the washing machine and the dish washer are not running at the same time


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geauxnc0308
LSU Fan
pineywoods of ET
Member since May 2008
316 posts

re: Drain for washer machine backs up
The vent can also get plugged causing slow drainage. This can be flushed out from the roof by running your hose down it with a fixed brass blast nozzle


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40
Macfly
LSU Fan
Toronto Maple Leafs
Member since Jan 2016
2703 posts

re: Drain for washer machine backs up
I periodically use Drano Max Gel followed by a hot water (kettle water) flush, then running a washer load.

I wash small fleece blankets with cat hair on them and the drain used to overflow occasionally, but the problem no longer recurs.


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Shanegolang
LSU Fan
Denham Springs, La
Member since Sep 2015
156 posts

re: Drain for washer machine backs up
Sometimes the washer drain and kitchen sink share a line and the sink can create a grease clog.


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Chuckd
Louisiana
Member since May 2013
779 posts

re: Drain for washer machine backs up
I had the same issue. I snaked it and all appeared to be fine but it would still over flow. I even stuck a water hose down it with the water wide open and that wouldn’t over flow it but the washer would. I finally called a plumber and he had a snake with a different type of tip that was able to clean the clog out and all was good after that.


DeafJam73
LSU Fan
Baton Rouge
Member since Sep 2010
14941 posts

re: Drain for washer machine backs up
I called a plumber. He’ll be over Monday morning. I did what I could, but no success.


Sidicous
LSU Fan
Middle of Nowhere
Member since Aug 2015
9617 posts
 Online 

re: Drain for washer machine backs up
Grandmother clogged her drain good and hard using too much powdered soap followed by fabric softener liquids. Over the years it built up causing a solid cement like blockage a foot long in the drain pipe. Snake could only chip away at it, had to use an auger bit on the snake to drill it out.


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keakar
Member since Jan 2017
11660 posts
 Online 

re: Drain for washer machine backs up
I tried running a snake, but the pipe makes this u shape at the bottom. I can’t get the snake to bend that way.

no, you dont snake the drain pipe, you cant get passed the p-trap and then the tee or 90 after it

there should be a clean out plug outside on the opposite side of the house from the main sewer cleanout. usually on the opposite side of the wall for the washer, there will be a waste water line for the laundry and most likely kitchen area as well and thats where you snake it.

what happens is food getting washed down the kitchen sink settles right where the pipe connects to the main waste water line and it builds up and gets solid until it blocks off too much of the line to let the washer drain and it backs up
This post was edited on 12/1 at 11:17 pm


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Bedhog
LSU Fan
Denham Springs
Member since Apr 2019
3110 posts

re: Drain for washer machine backs up
is there an air gap in the line?



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