1. Ball Bearings from Cabinet Hardware
One of the most common sources is ball bearings from cabinet drawer slides or hinges. Over time, drawers that are opened and closed frequently can wear down, causing tiny metal balls to fall out.
What to do:
Check nearby drawers or cabinet tracks. If a drawer feels loose or rough, it may need repair or replacement.
2. Parts from the Sink Shut-Off Valve
Some sink shut-off valves and faucet components contain small metal balls as part of pressure or flow control mechanisms. If a valve is old or damaged, a piece may come loose.
What to do:
Inspect the shut-off valves under the sink. If you notice leaks, stiffness, or corrosion, it’s a good idea to have a plumber take a look.
3. Debris from Old Plumbing
In older homes, plumbing systems can slowly degrade. Small metal pieces may come from aging pipes, fittings, or connectors.