Skip to main content

Disconnect Dishwasher Drain Line — Disconnect the Water Supply Line

Beginner

Part of project

How to Remove an Old Dishwasher · Step 3 of 6

Helpful?

In this video

Locate the flexible drain line coming from the dishwasher, which connects to an inlet barb on the side of the garbage disposal. This line is secured by a metal hose clamp. Use a screwdriver or a nut driver to loosen the screw on the clamp. Once the clamp is loose, pull the hose off the barb. Be prepared for some water to spill out.

Goal: Remove Dishwasher Hose

  • Place a bucket underneath the connection to catch any water that will drain from the hose.

Used in this video

  • Screwdriver or Nut Driver (brand: N/A, Tool Type: Screwdriver, Power Source: Manual, Material: Metal, Size: Small, Specific Use: Fastening)Loosening the hose clamp on the dishwasher drain line.
17.7K views4675 minutes
Chris Notap

1.1M subscribers

View Channel

FAQs

What are the absolute most critical safety steps I need to take before starting this project?

Before anything else, locate and shut off the electrical breaker dedicated to your dishwasher, and turn off the hot water supply valve, usually found under the sink. Verify both are off before touching any wires or hoses to prevent electric shock or water damage.

What specific tools from the list are absolutely essential for a beginner, and are there common alternatives?

You definitely need a Phillips head screwdriver, an adjustable wrench, and a bucket for drips. While specialized tools can help, these three will handle most disconnections. Ensure your screwdriver fits snugly and your wrench isn't stripped.

How difficult is this project for someone with no prior plumbing experience, and how long should it realistically take?

This is considered a beginner-friendly project, primarily involving disconnection. For a first-timer, plan for 1.5 to 2.5 hours, allowing extra time for identifying connections, stubborn fasteners, and safely managing any water spills.

I'm concerned about water leaking everywhere when I disconnect the hoses. How much water should I expect, and how do I minimize the mess?

Expect some residual water (1-2 cups) from the supply line and the dishwasher's sump. Place towels and a bucket directly under the connections before loosening them. Work quickly and have extra absorbent towels, like the WYPALL L40, ready.

Transcript
Hide

shocked or cut our fingers off next thing that we're going to do is undo the drain line from the dishwasher that goes onto this little Barb here that's going to be put on with a hose clamp loosen the hose clamp take that drain line right off it's going to have a little water left in it so drain that in the

Auto-generated transcript. May contain errors.