It can be easy to miss the signs of a blocked sink, especially if the problem has been building up over time. Here are some common symptoms of a blocked sink:

• Water draining slowly or not at all
• Gurgling noises coming from the drain
• Foul odors coming from the sink or drain
• Water backing up around the plughole
• Visible blockages in the sink or drain, such as food particles or hair

If you notice any of these signs, it's important to address the problem as soon as possible. Ignoring a blocked sink can lead to bigger problems down the line, such as water damage, mold growth, or even structural damage to your property.