Top 7 Possible Reasons for Sink Backing Up?

A backed-up sink is a headache. Below you’ll find the top 7 most likely culprits. 

1. Clogged drain: The most common reason for a sink to back up is a clogged drain. This can be caused by hair, soap scum, food particles, and other debris that build up over time.
2. Blocked sewer line: A blocked sewer line can also cause a sink to back up. This can be caused by tree roots that have grown into the pipes, or by debris that has accumulated in the line.
3. Vent issues: The vent that connects your sink to the main sewer line may be blocked or malfunctioning, causing a backup.
4. Old pipes: Over time, pipes can become corroded or worn, which can lead to blockages and backups.
5. Foreign objects: Sometimes, foreign objects such as toys or jewelry can fall into the sink and cause a blockage.
6. Leaky pipes: If your sink has a leak, it can cause water to back up into the sink. This can be caused by a variety of factors, including corrosion or damage to the pipes.
7. Septic system issues: If your home has a septic system, it may be malfunctioning, causing a backup in your sink.