How Can A Dishwasher Drain Through Floor? (Answered!)

Dishwasher drain through floor

Maybe you just got a new dishwasher. You perhaps want to know whether or not you can make this dishwasher drain through the floor.

The drainage system of your dishwasher is very vital for waste products to get filtered out of the appliance. 

Notwithstanding, there are limited ways for homeowners to do this. The setup of the drainage system of the dishwasher usually depends on the structure of your house or building.

This includes the layout and structure of the kitchen in particular.

This layout system whereby your dishwasher drains through the floor is 100% possible but it is not recommended due to some particular reasons.

In order to avoid issues, water break out or drainage system problems, you shouldn’t really drain your dishwasher through the floor. 

Normally, it is supposed to be attached to the sink as this is considered a better set up rather than the later. 

Dishwasher drain pipes inserted in the floor

But if you still prefer your dishwasher draining through the floor, you need to be aware of some basic things to consider while doing this. 

Proceed with reading the content if you intend to know the little tips to consider for making a floor penetration for your dishwasher, why this isn’t recommended and some other related information.

Draining Your Dishwasher Through The Floor

Note that if you are not running your dishwasher drain to a sink.

Then you definitely need to have a drainage system that is already installed below the surface of the ground.

This will help collect and convey water from the dishwasher which is above ground.

Most homeowners usually use this setup probably because the sink is not close to that drain which it’s supposed to be synced with.

dishwasher pump pipe

Draining the dishwasher to the basement floor drain could also be a useful idea, as the hose line has to be connected from underneath the floor. 

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What Should I Put In Place For My Dishwasher To Drain Through Floor?

If you have decided to set up your dishwasher by draining the appliance through the floor. 

There are some necessary things you need to put in place.

Knowing these things will help you avoid or probably prevent the disadvantages of the appliance draining directly through the floor.

  1. Having a trench is important for proper drainage system protection
  1. Make sure it’s connected to a sink
  1. Maintain a straight path to the drainage system
  1. Ensure that the drain hose should be lengthy enough
  1. Inspect for water damage risks

Having A Trench Is Important For Proper Drainage System Protection.

Creating a trench is vital for covering and protecting the hose pipe of your dishwasher from damage.

You will be required to create a trench for the hose pipe under the ground, we don’t want to have this pipe too exposed.

If it gets in contact with harmful substances and a drainage leak might occur. 

Maintain A Straight Path To The Drainage System

Passing a dishwasher through the floor might seem difficult sometimes. You need to put a lot of things in place for this to work.

Any inconvenience or obstruction can block the dishwasher drain pipes and halt a smooth flow of liquid waste products of your dishwasher.

Ensure that you maintain a straight path via the pipes that connect to the main drainage mistake. 

Pipe maintaining straight line

A lot of people make this error and it should not necessarily be a problem.

You should make sure that the pipes are not coiled and if they are, try to divert it towards a linear direction.

This ensures that the dishwasher waste gets to its destination as easily as possible. 

You really don’t want a block pipe, and certainly not the one passed through the floor…lol

Make Sure It’s Connected To A Sink

Running your dishwasher through the ground without a proper destination such as a sink is not a good idea.

Always make sure that whenever you are installing your dishwasher, inspect and check whether the appliance can be integrated with a sink.

This is a very important procedure but is mostly overlooked by a lot of homeowners out there. 

Do not imitate this idea. Assist your dishwasher by integrating a sink with the appliance in order to ensure that waste is properly deposited.

Inspect For Water Leakage Risks

When content is traveling directly from the dishwasher to the drainage system under the floor.  

There is a high percentage that water leakage might occur.

This is one of the reasons why you have to be really careful while running your dishwasher through the floor. 

Ensure that you inspect your appliance for any possible water leakage or damages that could occur just in case. 

Ensure That The Drain Hose Is Lengthy Enough

Apart from maintaining a linear path for a smooth flow of waste to the sink. You also need to ensure that these drain hose are lengthy enough.

Some dishwashers come with drain hoses that have a length of 6 to 6½ feet, this is totally normal depending on whether your dishwasher is close to this length.

If the standard drain hose for your dishwasher is not long enough to run through the floor.

White dishwasher with removed pipe

Extend it but make sure that the drain hose is no more than 10 feet in length in order to aid proper drainage.

You need to ensure that you have installed a high loop on the drain hose which is under your sink.

Why You Should Not Run Dishwasher Drain Through Floor?

Without a doubt, the best practice is to run the hose line closely connected to a sink without running it through the floor.

Here are some reasons why it is not so recommended that you run a dishwasher beneath the ground surface.

  • It can lead to unexpected water leakage from the pipes.
  • It could result in siphoning problems.
  • It can cause a backflow of waste and contaminate things.

Wrapping Up….

Note that the further your dishwasher is from the sink, the more risky it is.

This is another reason why running your dishwasher drain through the floor is not really recommended.

For this to happen, you have to consider the length of the hose, ensure it’s integrated with a sink, create a straight path to the drainage system, create a trench for protection and lastly inspect for any water leakage…..

Some homeowners even do run the pipes into their washing machine drain in the basement. 

You should be running the drain and the supply line through the cabinets rather than the floor.

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