Installing a garbage disposal might seem daunting, but with the right tools and a little patience, it's a manageable DIY project. This comprehensive guide will walk you through the process, ensuring a smooth and successful installation.
Tools You'll Need:
Before you begin, gather these essential tools:
- Adjustable wrench: For tightening and loosening various connections.
- Basin wrench: Essential for accessing and tightening the sink flange nuts. A standard wrench won't reach.
- Screwdrivers (Phillips and flathead): For removing and securing screws.
- Pliers: For gripping and manipulating small parts.
- Plumber's putty: To create a watertight seal around the disposal.
- Pipe sealant (Teflon tape): For creating leak-proof connections on threaded pipes.
- Bucket: To catch any leftover water.
- Flashlight: To illuminate dark spaces under the sink.
- Safety glasses and gloves: Protect your eyes and hands.
Step-by-Step Installation Process:
1. Disconnect the Old Disposal (if applicable):
- Turn off the water supply: Locate the shut-off valves for both hot and cold water lines under your sink. Turn them clockwise to shut off the water completely.
- Disconnect the water supply lines: Carefully detach the water supply lines from the old disposal using your adjustable wrench. Place a bucket underneath to catch any remaining water.
- Disconnect the drain lines: Disconnect the drain lines connecting the disposal to the sink drain and garbage disposal drainpipe.
- Disconnect the electrical supply: Turn off the power at the circuit breaker. Then, disconnect the power cord from the old disposal.
- Remove the mounting assembly: Remove the mounting hardware securing the old disposal to the sink.
2. Prepare for the New Disposal:
- Clean the area: Thoroughly clean the area under the sink to remove any debris or old putty.
- Inspect the new disposal: Carefully examine the new disposal for any damage or missing parts. Check the included instruction manual for your specific model.
3. Install the New Disposal:
- Mount the disposal: Position the new disposal under the sink and align it with the sink drain opening. Secure it using the mounting hardware provided.
- Connect the drain lines: Connect the drain lines from the sink and the drainpipe to the disposal, ensuring a tight and secure fit. Use plumber's putty to create a watertight seal around the disposal.
- Connect the water supply lines: Carefully connect the hot and cold water supply lines to the disposal, using Teflon tape to prevent leaks on the threads. Tighten the connections with your adjustable wrench.
- Connect the electrical supply: Once everything else is connected, turn the power back on at the circuit breaker and plug in the disposal.
4. Test the Disposal:
- Turn on the water supply: Slowly turn on the water supply valves to check for leaks.
- Test the disposal: Turn on the disposal and run cold water. Feed small amounts of waste into the disposal to test its functionality. Never overload the disposal.
Troubleshooting Common Issues:
- Leaking: Check all connections for tightness and ensure proper use of plumber's putty and Teflon tape.
- Disposal not working: Make sure the power is on and the circuit breaker isn't tripped. Check the electrical connections.
- Disposal humming but not grinding: This usually indicates a jammed disposal. Use tongs or pliers to remove any obstructions.
Choosing the Right Disposal:
Consider these factors when selecting a garbage disposal:
- Horsepower (HP): Higher HP means more power and ability to handle tougher waste.
- Sound level: Look for models with quieter operation.
- Features: Some disposals offer features like multiple grinding stages or jam-resistant mechanisms.
- Size: Ensure the disposal fits under your sink.
By following these steps and addressing potential issues, you can successfully install a garbage disposal and enjoy its convenience. Remember safety first! If you encounter any difficulties, consult a qualified plumber.
