Learn how to install a high loop for your dishwasher with comprehensive guide. Prevent leaks and ensure your dishwasher works flawlessly!
Installing a high loop for a dishwasher is a crucial step to ensure its proper functioning and prevent water leaks. A high loop drain hose serves as an anti-siphon device, preventing dirty water from flowing back into the dishwasher, which can lead to contamination and unpleasant odors.
The process involves removing the old high loop drain hose, positioning the new one securely in clamps, connecting it to the drain tube, and then reinstalling the dishwasher. This relatively straightforward procedure not only helps maintain the cleanliness of your dishwasher but also ensures a smooth and worry-free dishwashing experience. A high loop is a crucial component that prevents dirty water from flowing back into your dishwasher.
Proper Dishwasher Drain Loop
A proper dishwasher drain loop, also known as a high loop or an air gap, is a crucial component in a dishwasher’s plumbing system. It’s designed to prevent wastewater from flowing back into the dishwasher, which could lead to contamination and foul odors. Here are the details about a proper dishwasher drain loop:
Purpose:
- The primary purpose of a dishwasher drain loop is to create a gap or air break in the dishwasher’s drainage system, preventing dirty water from the sink or garbage disposal from flowing back into the dishwasher. This protects the dishwasher and ensures the cleanliness of your dishes.
Understanding the High Loop Drain Hose:
Tools You’ll Need:
Gather the following tools before you begin:
- 5/8-inch open-end wrench
- 70-millimeter nut driver
- Phillips screwdriver
- Needle-nose pliers
Step-by-Step Guide to Installing a High Loop for Your Dishwasher

The high loop drain hose connects your dishwasher’s drain pump outlet to the drain tube. Its key role is preventing dirty water from entering the dishwasher. Over time, if this hose cracks, it can lead to water leaks.
Step 1 – Preparation:
Before starting any work on your appliance, ensure safety:
- Unplug the dishwasher or turn off circuit breakers.
- Turn off water supply to the dishwasher.
Step 2 – Removing the Old High Loop Drain Hose:
- Open the dishwasher door and remove any screws securing it to the countertop.
- Place a towel under the shuttle valve to catch any water leaks.
- Use an open-end wrench to remove the water line.
- Loosen the clamp using a nut driver.
- Carefully detach the hose from the air gap, watching for water.
Step 3 – Accessing the High Loop Drain Hose:
- Gently pull out the dishwasher.
- Lay it on its right side, protecting the floor with a blanket.
- Remove the existing high loop drain hose.
Step 4 – Installing the New High Loop Drain Hose:

- Position the new drain hose in the provided clamps, avoiding contact with edges.
- Connect the drain hose to the drain tube using a hose clamp and nut driver.
- Secure the installation and raise the dishwasher upright.
Step 5 – Reinstalling the Dishwasher:

- Slide the dishwasher back under the countertop.
- Fasten it with the previously removed screws.
- Close the dishwasher door, turn on the water, plug in the appliance, and run a cycle to check for leaks.
Preventing Smells:

An improperly installed dishwasher drain line can lead to unpleasant odors due to sink water entering your dishwasher. Follow these steps:
- Unplug the garbage disposal and turn off water before repairs.
- Replace the drain hose, securing it with a clamp.
- Ensure proper connections and test for leaks.
Dishwasher Model Specifics:
For Whirlpool’s new dishwasher models, follow these installation steps:
- Use provided parts like anchors, clamps, and screws.
- Connect the drain hose with a silver clamp.
- Route the drain hose under the rear leg to prevent interference.
- Properly route power cord, water supply, and drain hose through a hole.
Safety Measures and Additional Tips:
- Always prioritize safety by unplugging the appliance and turning off water and power.
- When in doubt, consult your dishwasher’s model manual for specific instructions.
- If unsure, get assistance from another person to move or install the dishwasher safely.
Frequently Asked Questions
What’s the purpose of a high loop drain hose?
The high loop drain hose prevents dirty water from flowing back into the dishwasher, ensuring a hygienic cleaning process.
How do I know if I need to replace the high loop drain hose?
If you notice water leaks or cracks in the hose, it’s time for a replacement.
Can I install a high loop without professional help?
Absolutely! Our step-by-step guide makes it easy to install a high loop for your dishwasher.
Why is it important to follow specific installation steps for certain dishwasher models?
Different dishwasher models have unique designs, so following specific steps ensures proper installation and optimal performance.
Key Takeaways:
- Installing a high loop drain hose is essential for preventing water leaks and maintaining your dishwasher’s efficiency.
- Gather the necessary tools, prioritize safety, and follow our step-by-step guide for a hassle-free installation.
- Ensure proper connections to prevent smelly dishwasher odors caused by sink water entering the dishwasher.
- Specific dishwasher models may require unique installation steps, so consult the manual for guidance.
- Don’t hesitate to seek assistance if needed to ensure a safe installation process.