The most common reason your second sink isn't draining is a clog in the drainpipe, often within the P-trap.
Common Causes of a Clogged Sink Drain:
Here's a breakdown of the usual culprits:
- Grease Buildup: Grease solidifies as it cools and sticks to pipe walls, gradually narrowing the drain.
- Food Particles: Small bits of food, especially starchy items like rice or pasta, can accumulate and form a sticky mass.
- Soap Scum: Certain soaps can leave behind a residue that combines with minerals in the water, creating a stubborn buildup.
- Hair: While more common in bathroom sinks, hair can still find its way into kitchen drains and contribute to clogs.
- Other Debris: Anything else that goes down the drain, like coffee grounds or small objects, can contribute to a blockage.
The Role of the P-Trap:
The P-trap is the curved section of pipe under your sink. Its purpose is to trap debris and prevent sewer gases from entering your home. Unfortunately, it's also the most likely spot for clogs to form.
Diagnosing the Problem:
Before resorting to drastic measures, consider these steps:
- Check the other sink drain: If both sinks are draining slowly, the clog is likely further down the drain line. If only one side is affected, the blockage is closer to that sink.
- Check the garbage disposal: If you have a garbage disposal on the affected side, make sure it's not jammed or malfunctioning.
Solutions:
Here are some DIY solutions you can try:
- Boiling Water: Pour a pot of boiling water down the drain. This can help melt grease and dislodge minor clogs. Use caution when pouring boiling water, especially with PVC pipes.
- Baking Soda and Vinegar: Pour 1 cup of baking soda followed by 1 cup of vinegar down the drain. Let it fizz for 30 minutes, then flush with hot water.
- Plunger: Use a sink plunger to create suction and dislodge the clog. Make sure to block the other sink drain to create a tight seal.
- Check and Clean the P-Trap: This involves removing the P-trap (place a bucket underneath to catch water). Carefully inspect the trap for any visible blockages and remove them.
When to Call a Plumber:
If you've tried these solutions and your sink is still not draining, it's time to call a professional plumber. A more serious blockage or a problem deeper within your plumbing system might require specialized tools and expertise.
