⚠️ Safety First: Turn off the dishwasher at the wall (unplug or switch off the breaker) and turn off the water supply valve under the sink.
What You’ll Need
Screwdrivers (Phillips/flathead) – for removing kickplate panels Pliers (slip-joint or needle-nose) Bucket or shallow pan – to catch water Old towels/rags – expect spills Flashlight/headlamp Long flexible brush (e.g., bottle brush or drain brush) White vinegar or baking soda New hose clamp (optional – good to have on hand)
Step 1: Access the Drain Hose The drain hose runs from the dishwasher to either the garbage disposal or a drain wye under the sink. clean drain hose dishwasher
Remove the dishwasher’s lower kickplate (usually 2–4 screws). Slide out the dishwasher slightly if needed (disconnect power/water first if moving more than a few inches). Locate the corrugated (ribbed) plastic or rubber hose – typically ¾" to 1" diameter.
Step 2: Disconnect the Hose
Under the sink: Loosen the hose clamp where the hose attaches to the disposal or drain pipe. At the dishwasher end: Remove the clamp and pull the hose off the pump outlet. Pro tip: Mark the hose orientation with tape if connections look symmetrical. ⚠️ Safety First: Turn off the dishwasher at
Place your bucket and towels underneath – water will drain out immediately.
Step 3: Inspect & Remove Debris Look into both ends of the hose with a flashlight. Common clogs include:
Glass shards Food labels (they peel off and lodge perfectly) Grease sludge Hard food particles (popcorn kernels, olive pits) Slide out the dishwasher slightly if needed (disconnect
Use needle-nose pliers to pull out any visible blockages . Step 4: Flush & Scrub the Hose Method A (Best for grease/film):
Fill a sink or bucket with hot water and 1 cup white vinegar . Submerge one end of the hose, then pour the solution through. Use the long brush to scrub the interior walls, pushing it all the way through.