Must Be Opened Once a Month — Most People Don’t Know This Simple Habit

Some everyday household items are designed to be closed most of the time—but experts say they must be opened at least once a month to prevent damage, odors, or costly repairs. Surprisingly, many people overlook this simple habit.

What Needs to Be Opened Monthly?

The most commonly ignored item is the drain clean-out or trap (including floor drains, sink traps, and rarely used bathroom drains).

When drains stay unused for long periods, problems can develop quietly.

Why Opening It Once a Month Matters

Plumbers and home maintenance professionals explain that monthly opening or flushing helps to:

• Prevent foul odors caused by dry traps
• Stop buildup of grease, soap, and debris
• Reduce mold and bacteria growth
• Avoid unexpected clogs or sewer gas leaks

In rarely used sinks, showers, or guest bathrooms, the water in the trap can evaporate, allowing unpleasant smells to rise into your home.

How to Do It the Right Way

Once a month, simply:

1. Run water for 30–60 seconds in each drain
2. For floor drains, pour in a bucket of clean water
3. Optionally add a tablespoon of cooking oil to slow evaporation
4. Check for unusual smells or slow drainage

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This takes less than five minutes but can save hundreds in repairs.

Other Items That Benefit from Monthly Opening

Experts also recommend opening or checking these once a month:

• Windows (to prevent seal sticking)
• Washing machine detergent drawer
• Dishwasher filter access
• Slow cooker lid and steam valve (if rarely used)

Moisture and inactivity are the biggest enemies of household equipment.

Final Thoughts

Something as simple as opening or flushing a drain once a month can protect your home from odors, damage, and unnecessary expenses. It’s an easy habit that most people don’t think about—but once you know, it’s hard to ignore.

Set a monthly reminder—your home will thank you.