A dishwasher full of dirty standing water is never a fun surprise. One minute you expect clean dishes, and the next you are staring at cloudy water sitting at the bottom of the appliance.
The good news? In many cases, you can safely empty the dishwasher and check a few common problem areas before calling a technician. This guide explains how to empty a dishwasher when it’s not draining, what causes the issue, and when it is time to get professional help.
Why Is There Standing Water in the Dishwasher?
Before you start scooping water out, it helps to know why the dishwasher is not draining. Most drainage problems come from a blockage somewhere in the system.
Common causes include:
- A clogged dishwasher filter
- Food debris blocking the drain basket
- A kinked or clogged drain hose
- A blocked garbage disposal connection
- A dirty air gap
- A faulty drain pump
- Broken glass or small objects stuck near the pump
Whirlpool notes that a dirty filter is one of the most common causes of dishwasher drainage issues, while Bosch also recommends checking the filter, pump area, and drain hose when a dishwasher will not drain properly.
Safety First: What to Do Before Emptying the Dishwasher
Before touching the water or removing any parts, take a few safety steps.
Turn Off the Power
Disconnect the dishwasher from power. If you cannot unplug it, turn it off at the breaker. This helps reduce the risk of electric shock while working around standing water.
Avoid Using Harsh Drain Cleaners
Do not pour chemical drain cleaner into the dishwasher. These products can damage internal parts, seals, hoses, and the pump.
Wear Gloves
Dishwasher water may contain food particles, grease, detergent residue, and sometimes broken glass. Wear rubber gloves to protect your hands.
How to Empty a Dishwasher When It’s Not Draining
Follow these steps carefully to remove the water and inspect the most common problem areas.
Step 1: Remove the Dishes and Bottom Rack
Start by taking out all dishes, utensils, and the lower rack. This gives you clear access to the bottom of the dishwasher.
If the dishes are dirty, place them in the sink or on a towel. Avoid putting your hands deep into cloudy water without gloves because sharp objects may be hidden.
Step 2: Scoop Out the Standing Water
Use a small cup, bowl, or plastic container to scoop out as much water as possible.
Pour the water into a bucket or directly into the sink. Work slowly to avoid spilling water onto the floor.
For example, if your dishwasher stopped mid-cycle after dinner, the bottom may be filled with greasy water. In that case, place towels around the base before scooping to protect your flooring.
Step 3: Soak Up the Remaining Water
Once the water level gets too low to scoop, use:
- Absorbent towels
- A sponge
- A turkey baster
- A wet/dry vacuum
A wet/dry vacuum is usually the fastest option, but towels and a sponge work fine for smaller amounts.
Whirlpool recommends removing standing water with a cup, towels, wet/dry vacuum, turkey baster, or sponge before troubleshooting the drain area.
Step 4: Clean the Dishwasher Filter
After the water is removed, check the dishwasher filter. The filter is usually located at the bottom of the dishwasher, often near the spray arm.
How to Clean the Filter
- Twist or lift out the filter according to your model.
- Rinse it under warm water.
- Use a soft brush to remove stuck food, grease, or detergent buildup.
- Check the filter housing for debris.
- Reinstall the filter securely.
Do not force the filter out. If you are unsure, check your owner’s manual.
A clogged filter can stop water from flowing out properly. It can also cause bad smells, cloudy dishes, and poor cleaning performance.
Step 5: Check the Drain Area for Food or Objects
Look at the bottom of the dishwasher where the water drains. Remove visible debris such as:
- Rice
- Pasta
- Seeds
- Labels from jars
- Toothpicks
- Small bones
- Broken glass
Be careful here. Broken glass can settle near the drain and may not be easy to see.
Bosch warns that foreign objects like food, dirt, or glass can clog the filter or pump and stop the dishwasher from draining.
Step 6: Run the Garbage Disposal
If your dishwasher drains through the garbage disposal, a clog there can cause water to back up into the dishwasher.
Run cold water, then turn on the disposal for 20–30 seconds. After that, try running the dishwasher drain cycle again.
Important Tip
If your garbage disposal was recently installed, make sure the dishwasher knockout plug was removed. If it was not removed, the dishwasher cannot drain into the disposal.
Step 7: Check the Air Gap
Some kitchens have a small cylinder-shaped air gap near the sink faucet. Its job is to help prevent dirty sink water from backing up into the dishwasher.
If the air gap is clogged, water may drain slowly or spill from the air gap during a cycle.
How to Clean It
- Remove the air gap cap.
- Clear visible debris.
- Rinse the cap.
- Use a small brush if needed.
This is a small part, but it can create a big drainage headache.
Step 8: Inspect the Drain Hose
The drain hose usually runs from the dishwasher to the sink drain or garbage disposal. If it is kinked, crushed, or clogged, water cannot move out properly.
Check under the sink and look for:
- Sharp bends
- Pinched sections
- Food buildup
- Loose connections
- Water leaking from the hose
Bosch recommends checking that the drain hose is clear and not kinked or twisted when a dishwasher is not draining.
If the hose looks damaged, it may need to be replaced.
Step 9: Try a Drain or Cancel Cycle
After removing water and checking the filter, disposal, air gap, and hose, restore power and run the dishwasher’s Cancel, Drain, or Rinse/Drain cycle.
Listen carefully.
If you hear the pump running and water drains, the problem may have been a clog. If you hear humming, clicking, or silence, the drain pump may need inspection.
When to Call a Professional Dishwasher Repair Technician
You should call a professional if:
- Water comes back after you empty it
- The dishwasher makes a humming noise but does not drain
- You find broken glass near the pump
- The drain hose is clogged deep inside
- The dishwasher leaks onto the floor
- The unit shows an error code
- You smell burning or electrical odors
- The dishwasher repeatedly stops mid-cycle
A technician can test the drain pump, check electrical parts, inspect the motor, and confirm whether a repair or replacement part is needed.
How to Prevent Dishwasher Drainage Problems
A little maintenance can help prevent standing water from coming back.
Simple Prevention Tips
- Scrape large food pieces before loading dishes.
- Clean the filter at least once a month.
- Run the garbage disposal before starting the dishwasher.
- Avoid overloading the dishwasher.
- Use the correct dishwasher detergent.
- Check the air gap occasionally.
- Inspect the drain hose if you notice slow draining.
- Run a cleaning cycle regularly.
Maytag explains that dishwasher drainage problems are often caused by clogs or obstructions in the dishwasher drain or nearby garbage disposal.
Real-Life Example: A Simple Filter Clog
Imagine you run the dishwasher after a family dinner. The next morning, there is dirty water sitting at the bottom. The dishwasher sounds normal, but it will not drain.
You empty the water with a cup and towel, remove the filter, and find pasta pieces and a jar label stuck inside. After rinsing the filter and clearing the drain basket, the dishwasher drains normally again.
That is a common situation. Not every drainage issue means a major repair. Sometimes, the dishwasher simply needs a good cleaning.
FAQs About Emptying a Dishwasher That Is Not Draining
1. How do I manually drain water from my dishwasher?
Use a cup or bowl to scoop out standing water, then soak up the rest with towels, a sponge, turkey baster, or wet/dry vacuum. Always turn off the power first.
2. Why is my dishwasher full of water at the bottom?
The most common reasons are a clogged filter, blocked drain area, kinked drain hose, garbage disposal clog, dirty air gap, or faulty drain pump.
3. Can I run my dishwasher if there is standing water in it?
It is better not to run a full wash cycle until you remove the water and check for clogs. Running it again may cause overflow, leaks, or poor cleaning.
4. Will a clogged garbage disposal stop my dishwasher from draining?
Yes. Many dishwashers drain through the garbage disposal. If the disposal is clogged or the knockout plug was not removed after installation, the dishwasher may not drain.
5. When should I call a repair technician?
Call a technician if cleaning the filter, air gap, hose, and disposal does not fix the issue. You should also call if the dishwasher leaks, shows an error code, or the drain pump is not working.
Conclusion
Knowing how to empty a dishwasher when it’s not draining can save you stress, time, and possibly a service call. Start by turning off the power, removing standing water, cleaning the filter, checking the drain area, running the garbage disposal, inspecting the air gap, and reviewing the drain hose.
If the dishwasher still will not drain after these steps, the issue may involve the drain pump or a deeper clog. At that point, it is best to schedule professional dishwasher repair before the problem turns into a leak, odor issue, or bigger appliance failure.
Need help with a dishwasher that will not drain? Contact a trusted appliance repair technician today and get your kitchen back to normal fast.
