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Tim
Persistent kitchen sink clogs
Tim

We have a kitchen sink with disposer and dishwasher all draining through the same 1.5 inch line. The line runs about 40 feet straight to where it enters the sewer main. The line was installed about 15 years ago and over the years we have had a few clogs that were easily rodded out. The past two years the drain has clogged with greater frequency, about every 6 months and the last time only 2 months since the drain was snaked. Each time we snake it has been the entire length of the run. Why would the time been roddings be decreasing? Is it simply time to replace the old waste line? Should we upgrade it to 2 inch pipe if we do? Thanks.

bill
Re: Persistent kitchen sink clogs
bill

get rid of the garbage disposal. blockages happen all the time , in fact we had one very rich customer that we had left a super vee machine under her sink because we went there so often. NEVER but down anything fibrous, that is pineapple tops, banana tips, artichoke leaves . celery stalks, apple stems ect.
Also garbage disposals can bring rats in to your house if you have rats in your local sewer system.
If you still want keep it then change to a 2 or even a 3 inch line.

Bill

ordjen
Re: Persistent kitchen sink clogs
ordjen

Is it literally a "straight run" to the down stack? No bends or elbows? Are there no slightly depressed areas along the run? Any low spot will eventually clog, as solids will back flow and collect there. Never a good idea to pour grease down the drain.

In my present house, I used to get clogs right at the down drain where the disposal met the second basin down line. This was a plastic fitting with a baffel to deflect the disposal water from the second sink bowl down drain. Solids, such as potato peels, would constantly get hung up on this baffel. I removed that elbow and cut away most of the baffel in it. Since then, I have not had another back up at the disposal.

keith3267
Re: Persistent kitchen sink clogs
keith3267

Try pushing a garden hose down there. Even better, attach an old fashioned brass twist type nozzle on it with the spray set to a V pattern. Push it all the way down, then turn on the water and slowly pull it out. It will clean out the pipe pretty good.

A. Spruce
Re: Persistent kitchen sink clogs
A. Spruce

I would suggest having the drain jetted, basically what Keith just suggested, but a plumber's version is going to work better. If the problem persists, I'd suggest sending a camera down to see if there are any problem spots where a root has penetrated the line or the line has been crushed in some manner. Or, as Bill suggests, replace the line with a larger diameter line.

Whatever you do, watch what you're stuffing down the disposal, there are some big no-no's about what NOT to send down a disposal. As was mentioned, high fiber/tough things should not be put down, things such as onion or banana peels, meat scrap, etc. If the disposal can't break it apart quickly and easily, DO NOT send it down.

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