The Simple Trick Plumbers Use (And Almost No One Talks About)
Here’s the part most homeowners don’t know.
You don’t need chemicals, drain covers, or expensive plumbing work.
You need something that already sits in your kitchen.
Cooking oil.
Plumbers and experienced homeowners use this low-effort trick to keep unused drains sealed for months.
Here’s why it works:
- Water evaporates over time.
- Oil does not evaporate nearly as fast.
- Oil floats on top of water.
When you add a thin layer of oil to a filled trap, it forms a protective barrier.
The water underneath stays put.
The sewer gas stays blocked.
No smell. No maintenance. No drama.
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