Why Drains Clog More in Summer and How to Fix It

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Gina Napsin
Date
June 10, 2025
Theme
Plumbing
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875
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When temperatures rise, so do plumbing problems - especially clogged drains in summer. From backyard barbecues to increased shower use, your plumbing system faces extra stress during the warmer months. The result? Blocked sinks, slow drains, and unpleasant odors can quickly ruin your summer vibe. But what causes these seasonal clogs, and how can you prevent them? In this blog, we’ll explore the common reasons drains clog more in summer and provide practical tips to keep your pipes flowing smoothly all season long.

Increased Usage During Summer Months

Summer means more people at home - children on school break, relatives visiting, pool parties, barbecues, and backyard entertaining. With more people using sinks, showers, bathtubs, and toilets more frequently, the plumbing system endures additional stress.
Key Contributors:
  • Frequent showers are due to heat and outdoor activities.
  • More laundry loads from increased outdoor play or travel.
  • Higher kitchen usage during summer gatherings and food preparation.
This upsurge in usage significantly contributes to debris accumulation in drains, including hair, soap scum, grease, and food particles. Over time, these materials narrow the diameter of your pipes, leading to slower drainage and eventual clogs.

Grease and Food Waste From Summer Cooking

Backyard barbecues and summer cooking often involve fatty foods, oils, and rich sauces. Unfortunately, many people unknowingly dispose of grease and food scraps down the drain.
Hot weather accelerates the process of grease solidifying as it cools inside your plumbing system, forming thick, stubborn blockages. Despite the fluid appearance of hot grease, it quickly turns into a sludgy mass, adhering to pipe walls and capturing other debris along the way.
Tip: Always dispose of cooking oil and grease in a sealed container and place it in the trash. Avoid using your garbage disposal for fibrous or starchy food waste such as corn husks, potato peels, and pasta.

Tree Root Intrusion and Soil Expansion

Warm weather encourages tree and plant growth, especially in well-watered yards. The roots of trees are naturally drawn to moisture, and even the smallest crack or leak in a pipe can attract invasive roots.
As roots invade sewer lines or drainpipes, they create physical blockages that slow drainage or cause complete backups. At the same time, dry soil can expand and shift, potentially cracking older pipes and leading to drainage issues.
Warning signs of root intrusion:
  • Gurgling noises in toilets.
  • Unpleasant odors from drains.
  • Recurring clogs or backups.
Preventive measure: Schedule an annual inspection using a sewer camera to catch root growth early.

Hair and Soap Scum From Frequent Showers

Increased outdoor activities in summer mean more showers, sometimes multiple times a day. This contributes to more hair and soap buildup in bathroom drains.
Soap scum combines with hair, forming dense clumps that cling to pipe interiors. If left unchecked, this buildup eventually blocks water flow, especially in older or narrower pipes.
Maintenance tip: Use drain strainers in all bathroom drains and clean them regularly. Avoid letting long hair go down the drain, and consider switching to soap alternatives that leave less residue.

Sand, Dirt, and Debris From Outdoor Activities

Beach trips, hikes, and time spent in the yard lead to increased dirt and sand entering your home and your plumbing system.
When people shower off dirt and sand, it can accumulate in drain traps and pipes, contributing to clogs. Likewise, muddy clothes washed in the laundry can leave residue in washer drains.
Fix: Encourage rinsing off with a hose outdoors before heading into the shower, especially after beach or dirt-heavy activities.

Impact of Hot Temperatures on Pipe Functionality

Heat affects more than just comfort - it impacts your plumbing. Extreme temperatures can cause pipes to expand and contract, particularly in exposed or poorly insulated areas. This stress may lead to joint separation or minor cracks where debris can accumulate.
Additionally, high humidity can cause mold growth or mildew buildup within drain lines, which not only smells unpleasant but also slows drainage.
Recommendation: Insulate exposed pipes, and use dehumidifiers in bathrooms or basements to control moisture.

DIY Solutions to Prevent and Clear Summer Drain Clogs

Preventive care is the most effective approach to reducing summer drain clogs. However, when issues arise, several do-it-yourself solutions can help.
1. Use Boiling Water and Vinegar:
  • Pour boiling water down the drain to soften minor grease clogs.
  • Follow with a cup of baking soda, then pour in a cup of white vinegar.
  • Let it sit for 15-30 minutes, then flush with more boiling water.
This chemical-free method helps break down soap scum, hair, and grease.
2. Enzyme-Based Drain Cleaners
Unlike harsh chemical cleaners, enzyme-based products are environmentally friendly and safe for pipes. They utilize natural bacteria or enzymes to eat away organic material, making them effective for regular maintenance.
3. Drain Snakes and Augers
For stubborn clogs, a manual drain snake can help dislodge the obstruction. Insert it into the drain, rotate it to catch debris, and pull it out carefully. If you face resistance, consider calling a professional to avoid pipe damage.

When to Call a Professional Plumber

If slow drainage, recurring clogs, or unpleasant odors persist despite your best efforts, it’s time to bring in a licensed plumber. Professional drain cleaning services use high-pressure water jetting, camera inspections, and mechanical augers to fully restore drainage efficiency.
Common services provided:
  • Hydro-jetting to remove deep clogs and buildup.
  • Sewer line inspections to check for tree root intrusion.
  • Pipe repair or replacement in case of cracks or structural damage.
Relying on expert plumbing services ensures long-lasting results and helps prevent more costly repairs down the line.

Conclusion: Stay Ahead of Summer Drain Problems

Clogged drains during summer are more than just a seasonal nuisance—they’re a result of increased household activity, warmer temperatures, and natural outdoor elements. By understanding the root causes of summer drain clogs and implementing proactive solutions, you can avoid costly repairs, water damage, and disruption to your home.
Make preventive maintenance a habit, use drains responsibly, and address issues at the first sign of trouble. And remember, when in doubt, a trusted plumbing professional from Home Alliance can provide comprehensive solutions to keep your home running smoothly all summer long.

FAQs

  • Why do my drains clog more often during summer?
Drains tend to clog more in summer due to increased household activity, such as more showers, laundry, and cooking. Additionally, outdoor elements like sand, dirt, and tree root growth can stress plumbing systems.
  • Can cooking grease clog my drains even if I use hot water?
Yes, hot grease may seem liquid, but it quickly solidifies as it cools, sticking to pipe walls and trapping debris. Over time, this leads to thick, stubborn clogs that are difficult to remove.
  • What’s the safest way to clear a minor drain clog at home?
A safe and effective method is to use boiling water followed by baking soda and vinegar, then flush again with boiling water. This natural solution helps break down buildup without damaging your pipes.
  • How can I prevent tree roots from invading my sewer lines?
Schedule an annual sewer camera inspection to detect early signs of root intrusion. Fixing minor cracks or leaks promptly can stop roots from infiltrating your pipes.
  • When should I call a professional plumber for a clogged drain?
If you notice recurring clogs, persistent odors, or slow drainage despite DIY efforts, it’s time to call a licensed plumber. Professionals have tools like hydro-jetters and cameras to accurately diagnose and fix deeper issues.