How to Replace a Drain Hose on a Dishwasher

Written by nathan mcginty
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How to Replace a Drain Hose on a Dishwasher
Act quickly to replace a leaky dishwasher drain hose. (Dishes image by Towards Ithaca from Fotolia.com)

Dishwashers do their work silently, whirring away beneath your kitchen cabinet and making your dishes spotless. That is, until they start leaking all over your kitchen. The main source of leaks in a dishwasher is the drain hose, which carries the dirty dishwater from the dishwasher to the sink trap or garbage disposal beneath your sink. Replacing the drain hose on your dishwasher isn't difficult, but you should do it as soon as you notice a leak.

Skill level:
Moderately Easy

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Things you need

  • Screwdriver

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Instructions

  1. 1

    Unplug the dishwasher or turn off the power at the electrical circuit.

  2. 2

    Position yourself at the back of the dishwasher. If this is impossible (such as a dishwasher installed in a cabinet), unscrew the dishwasher from the mounting brackets with a screwdriver and move the machine so you can reach the back. Use caution if you have to do this, as the drain, water and electricity cords and hoses are still hooked up to the dishwasher.

  3. 3

    Loosen the hose clamp on the end of the drain hose connected to the dishwasher, using the screwdriver. Follow the drain hose to where it terminates. In most installations this will either be at the disposal or sink trap. Use the screwdriver to loosen and remove the hose clamp on this end of the hose.

  4. 4

    Connect one end of the new drain hose to the termination point. Secure with the hose clamp.

  5. 5

    Connect the other end of the drain hose to the dishwasher. Secure with the hose clamp.

  6. 6

    Move the dishwasher back to its original location, if necessary. Restore power to the circuit. Run the dishwasher on empty and check for proper operation and draining. Tighten any hose clamps if necessary.

Tips and warnings

  • Ensure that the drain hose isn't kinked. This can lead to tears in the hoses and kinks.

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