Drain Sink - Overflow
Standard drop-in and undermount sinks almost universally featured overflow drains. They were considered an insurance necessity to prevent catastrophic water damage in apartments and hotels.
By keeping the overflow drain clear and clean, you ensure your plumbing stays efficient, your bathroom stays fresh, and your home stays protected from accidental flooding. overflow drain sink
If the clog is deep, insert a small piece of flexible tubing into the hole and blow compressed air or flush water through it to dislodge debris. When to Call a Pro you ensure your plumbing stays efficient