Winter thaw causing runoff near a home, illustrating drain clog prevention tips.

In southern Wisconsin, winter isn’t just cold — it’s a cycle. Freeze. Thaw. Refreeze. And when temperatures bounce around, your home’s drains and sewer line can take a beating. The good news: a few simple habits can dramatically reduce the risk of winter drain clogs and nasty sewer backups.

Below are practical steps you can take now (and a few warning signs you shouldn’t ignore) to keep everything flowing the way it should.

Why Winter Thaws Trigger Clogs and Backups

During a thaw, melting snow and ice can send a sudden surge of water into municipal systems and your property’s drainage points. At the same time, winter brings conditions that make clogs more likely:

  • Grease and food scraps build up faster when pipes run colder.
  • Extra indoor activity (more cooking, guests, kids home) means more strain on kitchen and bathroom drains.
  • Basement floor drains may see more moisture and debris.
  • Sump pumps and discharge lines can struggle if they’re blocked or poorly routed.

If your pluming is already “almost clogged,” winter thaws tend to expose the problem.

7 Ways to Prevent Winter Drain Clogs

  1. Keep Grease Out of the Kitchen Drain
    Grease might go down as a liquid, but it cools and sticks inside the pipe. In winter, it solidifies even faster.
    • Pour grease into a disposable container, let it harden, and toss it.
    • Wipe pans with a paper towel before washing.
  2. Use Sink Strainers Everywhere
    A $5 strainer an prevent a $500 emergency call.
    • Kitchen: catches rice, coffee grounds, onion skins.
    • Bathroom: catches hair and soap chunks.
  3. Don’t “Flush-Proof” Your Toilet
    Even “flushable” wipes can create major blockages. Only flush toilet paper. Everything else goes in the trash.
  4. Run Hot Water After Using the Disposal
    After using your garbage disposal:
    • Run cold water while grinding (helps push food through).
    • Then run hot water for 15-30 seconds to help clear residue.
  5. Be Mindful of Snow-Melt Runoff
    If you notice heavy meltwater pooling near the foundation, it can raise the risk of water intrusion and overwhelm drains. Clear snow away from:
    • downspouts
    • window wells
    • basement entry areas
  6. Check Your Sump Pup Before the Next Thaw
    A sump pump that fails during a thaw can mean a wet basement quickly.
    • Test it by pouring water into the pit until it activates.
    • Confirm the discharge line is clear and directed away from the home.
  7. Treat “Slow Drains” As An Early Warning
    A slow drain is rarely “just slow.” It’s usually a partial clog that’s collecting more debris over time. Address it early with:
    • a plunger
    • a safe enzyme drain cleaner (not harsh chemicals)
    • a professional drain cleaning if it keeps coming back

Warning Signs You Should Call a Plumber

Call for help right away if you notice:

  • multiple drains backing up at once (kitchen + basement, or shower + toilet)
  • gurgling sounds from drains or toilets
  • sewage smell near floor drains
  • water coming up in a tub when the washing machine drains
  • repeated clogs in the same fixture

Those can point to a deeper blockage – sometimes in the main line – and DIY attempts an make the mess worse.

Need Help Fast in Janesville?

If you’re dealing with slow drains, recurring clogs, or any sign of a sewer backup, don’t wait for it to become an emergency

Call Matt at Magee Plumbing: 608-921-2553
We’ll help you pinpoint the cause and get things flowing again – safely and correctly.

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