Kitchen Sink Backing Up When Washing Laundry

 In Plumbing Problems
Kitchen Sink Backing Up When Washing Laundry - Fox Valley Cities

What to Do When Kitchen Sink Backing Up When Washing Laundry

Plumbing problems can be the worst, especially when it’s affecting several parts of your home. A kitchen sink backing up when washing laundry is definitely out of the normal. This problem can be caused by either a clogged drain or a venting issue. So, where do you start? Well, if you’re looking for a quick fix, we always recommend contacting your local plumbing company. If you’d like to try to fix this on your own, continue to read the article below!

The Location Of The Clog

All plumbing fixture drains in a residence, including the washing machine drain, must connect to a 3- or 4-inch main drain pipe that connects to a sewer or septic tank outside the home. To drain a washing machine into a kitchen sink, the kitchen sink drain must connect to the washing machine drain pipe. Our Appleton plumber says that the clog lies somewhere after the connection to the kitchen sink drain but before the connection to the other drains. Note that the water would just back up from the washing machine drain if the clog was before the kitchen sink. If the blockage occurred after the connection with other fixture drains, it would back up into the lowest fixture, which was usually a shower or toilet.

Drainage Issues

Washing machines may pump up to 15 gallons of water per minute into the drain. This is significantly quicker than any other fixtures or appliances. A drain pipe of 1 1/2 inches was thought to be adequate for earlier washing machines. However, code now requires a washing machine drain pipe size of at least 2 inches in many regions for appropriate drainage. Our friends at McQuillan Bros, who offers Twin Cities plumbing services, say that due to the grease and food that is frequently poured into them, kitchen-sink drain pipes clog more frequently than other plumbing fixtures. Due to the volume of water pumped from the washing machine, even a partial obstruction in the shared drain pipe from the kitchen sink can cause the washing machine to back up into the sink.

Ventilation Issues

If there is a gurgling sound coming from the sink drain when the washing machine drains, the backup could be caused by a venting problem. Drainage problems will occur if the washing machine or kitchen vent is run incorrectly or is too small. Similarly, if the vent is clogged, consider a straw with liquid in it. The liquid will not drain if one end of the straw is blocked. The same is true for a plumbing system. If you hear gurgling coming from the kitchen sink, it’s because the sink is being used as a vent.

Resolving the Issue

If the sink is gurgling, visually inspect the vent for blockages. A clog in a drain pipe is most likely too far away to be unplugged by plunging. At this point, if your kitchen sink is backing up when washing laundry, you should contact Tureks Plumbing. Our team of experienced plumbers will resolve the problem in no time. We offer 24/7 emergency plumbing services throughout the Fox Valley cities areas. 

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