Kitchen Sink Drain Pipe Leaking at the Connection: Causes & Solutions

Close-up Of Plumber Fixing White Sink Pipe With Adjustable Wrench

There’s nothing more frustrating than seeing water dripping from underneath the kitchen sink. A leaking drain pipe can cause water damage to your cabinets and floors, result in unpleasant odors, and attract pests. But there’s no need to panic! Our experts at Dean’s Home Services explain why kitchen sink drain pipes can leak at the connection, what can cause them, and provide you with some DIY solutions.

Why Kitchen Sink Drain Pipes Leak at the Connection

To understand why your kitchen sink, drain pipe is leaking, it’s essential to know how it works. The kitchen sink drainpipe connects to a curved pipe known as the P-trap. This U-shaped pipe traps some water, which prevents sewer gas from entering your home. When you drain water from the sink, it flows through the pipe and into the P-trap, which then carries it to the sewage system. The P-trap is located beneath the sink, where it connects to the wall or floor. A leak can occur at any of these connection points.

Causes of Kitchen Sink Drain Pipe Leaks

There are several reasons why your kitchen sink drain pipe can leak, including:

  • Loose or damaged connection: If the nuts that connect the P-trap or the drainpipe to the wall or the sink are loose or damaged, water can leak out.
  • Corrosion: Constant exposure to water and chemicals can cause the metal parts of the drainpipe, P-trap, and connecting nuts to corrode and eventually fail.
  • Clogs: A clog in the drainpipe or the P-trap can cause water to back up and put pressure on the joints, leading to a leak.
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DIY Solutions To Fix a Leaking Kitchen Sink Drain Pipe

If you have a leaking kitchen sink drain pipe, there are a few solutions you can try before calling a plumber in Minneapolis and St. Paul:

  • Tighten the nuts: Check if the nuts that connect the P-trap or the drainpipe to the wall or sink are loose. If they are, use a wrench to tighten them.
  • Replace the nuts: If the nuts are damaged or corroded, you should replace them. You can find them at a hardware store or online.
  • Clean the P-trap: If the leak is coming from the P-trap, it might be clogged. You can remove the P-trap and clean it using a wire brush.

When To Call a Professional Plumber

If you’ve tried the DIY solutions and the leak persists, it’s time to call a licensed plumber like Dean’s Home Services. Our family-owned and -operated business has over 100 combined years of experience serving the Twin Cities area. Our licensed and insured professionals offer same-day service and upfront pricing for your convenience.

Don’t let a leaking sink drain ruin your day — call Dean’s today to schedule plumbing services in Minneapolis, St. Paul, or the surrounding areas.

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