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Disconnect the Drain Hose — Disconnect Plumbing Connections

Beginner6 hours

Part of project

How to Replace a Garbage Disposal and Install a Standard Sink Drain · Step 2 of 7

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In this video

Begin by locating the dishwasher drain hose where it connects to the side of the garbage disposal unit under the sink. Using a flathead screwdriver, turn the screw on the hose clamp counter-clockwise to loosen it. Once the clamp is loose, you can slide it back along the hose. Carefully but firmly wiggle and pull the end of the drain hose off the garbage disposal's inlet nozzle.

Goal: Remove the drain hose from the garbage disposal.

  • Have a bucket ready to catch any water that might spill from the hose or disposal.

Used in this video

  • Screwdriver (Tool Type: Screwdriver, Screwdriver Type: Flathead)Loosening the hose clamp.
  • Bucket (Tool Type: Bucket) · optionalCatching any water that spills from the hose.
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FAQs

Is this project truly beginner-friendly, and what's the biggest challenge for a DIYer who hasn't done plumbing before?

Yes, this project is rated as beginner-friendly, primarily involving basic connections and hand tools. The biggest challenge often lies in ensuring all new PVC connections are properly tightened and sealed to prevent leaks, which requires careful application of plumber's putty and snugging fittings without overtightening. Patience and methodical testing are key to success.

The tool list includes several specific screwdrivers and pliers; are all of them absolutely necessary, or can I get by with fewer?

While the Channellock pliers are highly recommended for their grip and leverage on stubborn nuts and pipes, having a range of slotted screwdrivers is crucial for different screw types on the disposal's mounting assembly and hose clamps. A putty knife is also essential for correctly applying plumber's putty for a leak-free seal. Having the right tools prevents stripping screws and makes the job smoother.

What are the most common mistakes people make when replacing a disposal with a standard drain, and how can I avoid leaks?

The most common mistakes are not properly sealing the sink strainer with plumber's putty and overtightening PVC connections, which can lead to cracks. To prevent leaks, apply a generous, even bead of Oatey Plumber's Putty under the sink strainer flange. For PVC, hand-tighten nuts first, then use pliers for a final quarter-turn, ensuring all washers are seated correctly. Always fill the sink and test thoroughly for leaks before concluding the project.

My dishwasher drains into the disposal; how do I ensure it drains correctly after removing the disposal and installing a new drain?

You'll need to reconnect the dishwasher drain hose to the dedicated branch on your new sink drain assembly, such as the one included in the SnappyTrap DK-110 kit for double bowls. Secure the hose firmly with a new stainless steel hose clamp, like the Everbilt 5-7 in. clamp, to ensure a tight, leak-free connection. This ensures your dishwasher continues to drain properly into the new standard drain setup.

Disconnect the Drain Hose — How to Replace a Garbage Disposal and Install a Standard Sink Drain (Step 2, Video 2) | Stesso