Washing Machine Drain Backs Up Into Tub: Causes, Effects & Solutions

Today washing machines are one of the familiar items installed and used in most households. The reason is that the automatic washer makes daily laundry chores simpler and more convenient. Especially for busy people, this is an indispensable device.

However, after a period of use, you may experience problems or failures. One of the obstacles that many users encounter is washing machine drain backs up into tub. 

In this article, we will show you some effective ways to fix this problem. 

Causes of water in the washing machine flowing back into the tub

The household drain hose is clogged.

The washing machine’s pump is running, but water is more likely to get clogged in the pump hose or the laundry tub with no water draining out of the device.

This can sometimes happen after you rinse items such as carpets, and its fibers fall out. As a result, these fibers cause the drain tube to become clogged. If the line is blocked, it can prevent water from flowing out of the washing machine.

Water spill due to washing machine type

You may not be aware that the type of washing machine you are using could be the cause of your washing machine’s overflow of water into the tub. 

If you are using a top-loading washing machine, this type of device will consume a lot of water during washing and rinsing. As a result, it can cause water to return to the tub.

Water reflux from the washing machine’s drain pumping  system

Your laundry machine drains water with a certain pressure from the pump. If the washer pumps water out faster than a floor drain can handle, it will flow backward and cause waterlogging. It is most likely due to a blockage, or a partial obstruction in the pipeline is causing the problem.

The washing machine is tilted.

The fact that the washing machine foot may not be placed on an even surface is often ignored by many. If the washer’s foot is sloping, the laundry device will quickly shake and spill water or flow it back into the tub.

Effect of reverse flow in washing machine water 

Cause electrical leakage

Water is a good conductor of electricity. Thus, overflowing water can bring about electric current to leak out and cause great danger to your family.

Damage the washing machine

A prolonged overflow will damage the washing machine’s surface and cause rusting of the metal parts. More seriously, water can seep into the electrical circuit board causing short circuits, fire, and damage to the washing machine.

Cause mould

Water is a great environment for bacteria and mould to grow. Therefore, if the washing machine is overflowed for a long time, it will create a favorable environment for mildew to grow, resulting in an annoying smell.

How to fix the case when the washing machine drain backs up into tub? 

Call a plumber

If you are busy at work and can’t repair yourself, the fastest way to fix it is by calling a plumber. This professional repairman will check and find your machine problems and have them fixed for you.

Plus, it’s also a long-term solution because plumbers are experts in repairing things and they have specialized repair tools that you don’t have. Hence, they can fix your washing machine’s microscopic defects that you cannot detect.

Clean the washer drains and tub regularly

If you clean the washing machine drains and tub regularly, the residue, like fiber cloth, will be removed. Therefore, when water is drained from the pump, there is less chance of it being clogged in the bucket, and the water will not overflow. 

Replace with front-loading washing machine

Front-loading washers use much less water per washing than other models. This means there is less chance of water back flowing into the tub. 

The bottom line

The information above are the main reasons and solutions to fix the problem of washing machine drain backs up into tub. When your washing machine has water reflux, apply one of the methods above.

Automatic washer’s water reflux backward the tub is a common problem. If you find the cause of this problem, you can easily fix it. So, don’t worry too much. In case you don’t know how to fix it, call a professional plumber.

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