Every sink has a P-trap — the U-shaped pipe under the drain that holds water to seal out sewer gases .
But if you’re gone for a week or more — especially in hot, dry weather — that water evaporates .
Once the seal is broken, rotten-egg-smelling sewer gas (hydrogen sulfide) can rise up into your kitchen or bathroom.
📢 Real talk: Coming home to a foul stink is not the vacation welcome you want.
🐜 2. Damp Drains Attract Pests
A moist drain is a magnet for insects :
Drain flies (aka “sewer gnats”)
Fruit flies
Ants
Even cockroaches
They can crawl up through the pipes and into your home if there’s no barrier.
💧 3. Stagnant Moisture Breeds Mold & Mildew
Even a small amount of standing moisture can lead to mold growth — especially in bathroom sinks or disposals.
The Simple Fix: Paper Towel + Upside-Down Glass
This two-second trick stops all three problems — and it’s 100% free.
✅ How It Works:
Cover the drain with a paper towel or coffee filter
→ Blocks bugs and dust from entering
→ Absorbs any minor condensation
Place a drinking glass upside-down over the paper
→ Seals the drain completely
→ Prevents evaporation of any remaining water in the trap
→ Stops sewer gases from escaping
It’s like a mini airlock for your sink.
🛠️ Step-by-Step: The 10-Second Vacation Sink Hack
Clean the sink – Wipe it down to remove food debris or toothpaste gunk
Dry it slightly – No need to be perfect — just remove standing water
Place a paper towel over the drain
Cover with an upside-down glass (any size works)
Repeat for all sinks (kitchen, bathroom, utility room)
That’s it. You’re done.
💡 Pro Tip: Use a clear glass so it’s obvious the sink is “protected” — helps house sitters or family know not to turn on the tap.
Why This Trick Works So Well
Sewer Smells
Glass + paper = air seal → keeps gases trapped below
Insects
Paper blocks entry; glass adds a physical barrier
Drying Traps
Sealed environment slows evaporation
Dust & Debris
Paper catches floating particles
