How to upgrade your kitchen with a new garbage disposal
In short: Installing a garbage disposal can reduce kitchen odors and prevent food waste from clogging your plumbing. While the process requires specific tools like a mini hacksaw and plumber's putty, understanding the sequence of disconnecting old pipes and securing new flanges makes the upgrade manageable for many homeowners.
A garbage disposal serves several practical purposes in a modern kitchen. By grinding food waste into small particles, it reduces the amount of trash generated and minimizes the risk of plumbing drain damage caused by large food items. Additionally, it helps mitigate kitchen odors that arise from rotting food sitting in the sink.
The installation process begins with disconnecting the existing P-trap from the drain tailpipe using a wrench. It is essential to place a bucket underneath the pipes to catch any accumulated sludge or waste. After discarding the previous configuration, ensure the sink's upper surface is free of residual putty prior to coating the base of the replacement flange with new material.
Securing the flange to the counter varies by model; older versions often require three screws tightened with a screwdriver, whereas many contemporary models utilize a plastic ring that can be hand-tightened. If you have a dishwasher, you may need to punch through a knockout hole in the disposal to accommodate the drain hose.
The final stages involve attaching the disposal unit to the mounting ring—often a simple twisting motion—and reconnecting the P-trap to the disposal's side drain line. After sealing all connections, you should check for leaks by running the faucet. Finally, the unit must be powered, either by plugging it into an outlet or by having an electrician wire it directly to a power source.
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- Summary by Intellect · source: How to Install a Garbage Disposal | Ask This Old House
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