Replace a kitchen sink drain when you see leaks under the cabinet, visible corrosion on the basket strainer or tailpiece, repeat clogs at the same spot despite cleaning, persistent odor, or a strainer that no longer seals to the sink.

The Signs

  • Water under the cabinet. Check whether it is coming from the basket strainer seal, a slip joint, or the trap. Cabinet floors that have swelled or discolored mean it has been going on a while.
  • Corrosion. Older chrome-over-brass tailpieces and traps corrode through, usually starting at threaded joints. Once pitted, they will not seal reliably again.
  • Repeat clogs at the same point. A corroded or rough interior catches debris a smooth pipe would pass.
  • Persistent odor after cleaning, suggesting a cracked trap or a compromised seal.
  • A loose basket strainer that spins or no longer seats — the putty seal has failed and water is getting under the sink deck.
  • Slip joints that keep loosening or will not stop weeping even after new washers.

Cleaning vs. Replacement

Most slow kitchen drains are grease and food buildup rather than hardware failure. If professional drain cleaning restores full flow and it stays clear, the drain assembly is fine. If flow never fully returns or clogs come back within weeks, something is wrong with the pipe itself.

The Albuquerque Factor

Hard water accelerates scaling inside the drain assembly, and older homes here often have decades-old brass or galvanized components. Mineral scale narrows the passage permanently — cleaning cannot restore what corrosion has taken. A water softener slows it considerably.

Consider the Whole Assembly

If one component has failed, the rest is usually the same age. Replacing the basket strainer, tailpiece, trap, and slip joints together is generally cheaper than doing them one at a time as each fails. If you have a garbage disposal, its condition and mounting should be evaluated at the same time.

Check Further Down Too

If multiple fixtures drain slowly, the problem is the branch line or main, not the sink drain. That warrants a camera inspection.

Contact B. Carlson about kitchen plumbing in Albuquerque.