New Zealand is known for its beautiful landscapes and commitment to environmental sustainability. One way to contribute to this ethos in your own home is by installing a waste disposal unit. If you’re new to this concept, this guide will help you understand the benefits, types, installation, and maintenance of waste disposal units in NZ.

    What is a Waste Disposal Unit?

    A waste disposal unit, commonly referred to as a garbage disposal, is a device installed under a kitchen sink that shreds food waste into small pieces, allowing it to pass easily through the plumbing system. These units are a convenient way to manage kitchen waste, reducing the amount of organic material that ends up in landfills.

    Benefits of a Waste Disposal Unit in NZ

    1. Environmental Impact: By using a waste disposal unit, you reduce the amount of kitchen waste that goes to landfills. This helps in decreasing the greenhouse gases generated from organic waste decomposition.
    2. Convenience: It simplifies kitchen cleanup, allowing you to dispose of food scraps quickly and efficiently.
    3. Hygiene: Reduces the presence of food waste in your bins, minimizing odors and pest problems.
    4. Plumbing Protection: Modern waste disposal units can help in keeping your kitchen pipes clear by breaking down food waste into smaller particles.

    Types of Waste Disposal Units

    When choosing a waste disposal unit in NZ, you’ll encounter two main types:

    1. Continuous Feed Units: These are the most common type, activated by a wall switch. They allow you to add waste continuously while the unit is running.
    2. Batch Feed Units: These units only operate when the disposal cover is in place, making them safer for households with children as they prevent items from accidentally falling into the disposal.

    Installation of a Waste Disposal Unit in NZ

    Installing a waste disposal unit typically requires some plumbing and electrical knowledge. While many DIY enthusiasts can manage the installation, it is often recommended to hire a professional plumber to ensure it is done correctly. Here’s a basic outline of the installation process:

    1. Preparation: Ensure you have all necessary tools and parts. Turn off the electrical supply to the kitchen area.
    2. Removing the Existing Drain Assembly: This involves disconnecting the sink drain and removing any existing pipes.
    3. Installing the Mounting Assembly: Attach the mounting assembly to the sink’s drain hole.
    4. Connecting the Disposal Unit: Mount the disposal unit to the mounting assembly and connect it to the sink’s drain.
    5. Electrical Wiring: If the unit requires hardwiring, this step involves connecting it to your home’s electrical system.
    6. Testing: Once installed, test the unit by running water and turning on the disposal to ensure there are no leaks and it operates smoothly.

    Maintenance Tips for Waste Disposal Units in NZ

    To keep your waste disposal unit in NZ running efficiently:

    1. Regular Use: Run your disposal regularly to prevent rust and corrosion.
    2. Cold Water: Always use cold water when running your disposal to solidify any grease or oils, allowing them to be chopped up before reaching the trap.
    3. Avoid Certain Foods: Avoid putting fibrous, starchy, or hard items like potato peels, pasta, coffee grounds, and bones into the disposal.
    4. Cleaning: Clean your disposal with a mixture of ice cubes and salt to remove debris. Freshen it up with a small amount of baking soda and vinegar, followed by running cold water.
    5. Professional Check: Occasionally have a professional plumber check the unit to ensure it’s functioning correctly.

    Choosing the Right Waste Disposal Unit in NZ

    When selecting a waste disposal unit NZ, consider the following factors:

    1. Horsepower: Units come in various horsepower ratings. Higher horsepower units can handle tougher waste but may require more energy.
    2. Noise Levels: Look for units designed to operate quietly if noise is a concern.
    3. Warranty: Check the warranty offered by the manufacturer to ensure you are covered for any potential issues.
    4. Brand and Reviews: Opt for reputable brands and read customer reviews to gauge the reliability and performance of the unit.


    Installing a waste disposal unit in NZ is a practical and environmentally friendly choice for managing kitchen waste. With various types and models available, you can find one that suits your needs and preferences. Regular maintenance and proper use will ensure your unit operates efficiently, making your kitchen cleanup process seamless and contributing to New Zealand’s sustainability efforts.



    Leave A Reply