Why Is My Drain Slower Than Usual?

It starts as a minor inconvenience—a sink that takes longer to empty or a shower that leaves you standing in water. Slow drains are a common issue for many homeowners, and while they may seem harmless at first, they often signal underlying problems in your plumbing. Ignoring the issue can lead to more serious clogs, unpleasant odors, or even damage to your pipes.

Professional drain cleaning is one of the most effective ways to address slow drains and prevent recurring problems. But before you call in the experts, let’s explore the common causes, what you can do to fix the issue, and how to keep your drains flowing smoothly.

sink before calling someone for professional drain cleaning

What Causes a Drain to Slow Down?

There are many reasons why your drain might be slower than usual. While some causes are easily identifiable, others may require professional inspection.  

1. Accumulation of Debris

Everyday use of your plumbing system inevitably leads to the buildup of debris like soap scum, hair, food particles, grease, and more. Over time, these materials stick to the inner walls of your pipes, gradually narrowing the pathway for water to flow. In bathroom drains, hair is a frequent offender, tangling with soap and forming stubborn clumps. In kitchen drains, grease and food scraps play a similar role, creating layers of sticky residue.

This gradual accumulation may start slow but can quickly escalate into a full-blown clog if left unchecked.

2. Hard Water Deposits

Hard water contains high levels of dissolved minerals like calcium and magnesium. When this water flows through your pipes, it leaves behind mineral deposits that harden over time. These deposits can significantly narrow the diameter of your pipes, restricting water flow and creating rough surfaces where debris easily clings.

Homes in areas with hard water are especially susceptible to this issue, and it often requires professional treatment like descaling to restore proper flow.

3. Tree Root Intrusion

If your property has large trees, their roots could be the unexpected cause of your slow drains. Tree roots naturally seek out sources of moisture, and even the smallest cracks in underground pipes can become entry points. Once inside, roots grow rapidly, obstructing water flow and causing persistent slow drains.

This problem is more common in older homes with aging sewer lines. Left unresolved, tree root intrusion can lead to extensive pipe damage and costly repairs.

4. Grease and Oil

In kitchen drains, grease and oil are among the top offenders. While they may seem harmless in liquid form, grease and oil cool and solidify as they travel through your pipes. These substances form sticky blockages that attract other debris, compounding the issue.

Even small amounts of grease can accumulate over time, creating significant restrictions in your pipes. Pouring hot water down the drain may provide temporary relief, but professional cleaning is often needed to fully address the problem.

5. Foreign Objects

Drains are not designed to handle everything we might accidentally send their way. Items like baby wipes, cotton swabs, feminine hygiene products, and even small toys can create partial blockages that slow down water flow.

Toilets and sinks are particularly vulnerable to foreign objects, as their plumbing isn’t equipped to handle non-degradable materials. While plunging might temporarily dislodge the obstruction, professional tools may be required to remove it completely.

6. Sewer Line Issues

Sometimes, slow drains aren’t confined to one fixture—they affect multiple drains throughout your home. This often points to a larger problem in your sewer line. Common sewer line issues include blockages caused by debris or roots, pipe collapses, or misalignments due to ground shifting.

When your sewer line is compromised, slow drains are just the beginning. You might also notice gurgling noises, foul odors, or even sewage backups, all of which require immediate professional attention.

woman looks at plumber during professional drain cleaning

Why Should You Address Slow Drains Quickly?

A slow drain might not seem like an urgent problem, but letting it linger can lead to bigger headaches.

  • Complete Clogs: A partially blocked drain can eventually become fully clogged, cutting off water flow entirely.
  • Pipe Damage: Debris buildup and pressure from blockages can weaken pipes, leading to cracks or leaks.
  • Unpleasant Odors: Decomposing organic material in slow drains can create foul smells that spread through your home.
  • Increased Repair Costs: The longer you wait to address a slow drain, the more extensive (and expensive) the repairs might become.

How Can Professional Drain Cleaning Help?

Professional drain cleaning is the most effective way to tackle slow drains. Unlike DIY methods, professional tools and techniques target the root of the problem, ensuring a thorough and lasting fix.

1. Specialized Tools

Plumbers use advanced equipment like motorized drain snakes, hydrojetting machines, and video cameras to locate and remove blockages deep within your pipes. These tools are far more effective than plungers or chemical drain cleaners.

2. Comprehensive Cleaning

Professional drain cleaning doesn’t just remove visible blockages; it clears the entire pipe, eliminating buildup and preventing future clogs. Techniques like hydrojetting can even remove stubborn mineral deposits and tree roots.

3. Safety for Your Plumbing

Chemical drain cleaners sold in stores can damage your pipes over time. Professional cleaning methods are safer and more effective, preserving the integrity of your plumbing system.

4. Preventative Maintenance

Regular professional drain cleaning can catch minor issues before they become major problems, saving you money and stress in the long run.

DIY vs. Professional Drain Cleaning

While it’s tempting to try DIY solutions, they often provide only temporary relief and can sometimes make the problem worse. Here’s a comparison:

  • DIY Methods: Include plunging, using a drain snake, or pouring boiling water down the drain. These may work for minor blockages but rarely address underlying issues like grease buildup or tree roots.
  • Professional Cleaning: Goes deeper, removing not just the blockage but also the factors contributing to slow drains. It’s the best option for recurring problems or severe clogs.

How to Prevent Slow Drains

Prevention is always better than a cure. By adopting these habits, you can reduce the chances of dealing with slow drains in the future:

  • Avoid Pouring Grease Down the Drain: Dispose of grease in a container instead of washing it down the sink.
  • Use Drain Screens: These inexpensive devices catch hair, food particles, and other debris before they enter your pipes.
  • Flush Drains Regularly: Pour hot water down your drains weekly to help dissolve grease and soap scum.
  • Be Mindful of What You Flush: Only flush toilet paper and human waste—never wipes, sanitary products, or foreign objects.
  • Schedule Regular Maintenance: Professional drain cleaning once a year can keep your pipes in excellent condition.
  • Educate Your Household: Teach everyone in your home what can and cannot go down the drain. Simple awareness can prevent common mistakes that lead to clogs.

When to Call a Professional

  • Multiple drains in your home are slow or clogged.
  • You notice gurgling sounds from your drains or toilet.
  • There’s standing water that doesn’t drain at all.
  • Foul odors persist despite cleaning efforts.

A professional plumber will diagnose the issue accurately and recommend the best course of action to restore your drains to full functionality.

professional drain cleaning

Need Professional Drain Cleaning?

If your drains are slower than usual and you’re unsure where to start, Bannister Plumbing is here to help. Our expert team specializes in professional drain cleaning, ensuring your plumbing system works efficiently and reliably. From minor blockages to complex sewer line issues, we’ve got you covered.

Contact Bannister Plumbing today to schedule an appointment and say goodbye to slow drains for good!