Disposal runs normally but causes a noticeable humming noise in adjacent rooms or through the countertop.

Safety first: Turn OFF power before adjusting mounting or plumbing.

• Step 1 – Check clearances: Ensure the disposal body is not touching the cabinet walls, shelves, or other rigid structures.
• Step 2 – Inspect drain connections: Use rubber or flexible couplings between the disposal outlet and rigid piping to reduce vibration transfer.
• Step 3 – Add damping: Install rubber pads or washers between mounting brackets and cabinet surfaces where possible.
• Step 4 – Support pipes: Secure drain pipes with cushioned clamps to prevent them from resonating.