Here's why you should always leave an upturned glass and a piece of paper in the sink before going on vacation

Why not just plug the sink?

Many people ask, "Why not use a regular stopper?"
In reality,  sink stoppers  aren't always completely airtight. They can also dry out or move slightly while you're away, especially if the sink is slightly tilted or there are temperature fluctuations.

The glass turned over on a sheet allows  passive, pressure-free closure , which  limits air exchange  and mechanically protects against intrusions.

What if you have two sinks?

No problem: just repeat the process for each one. It's also recommended to do this in  the bathroom  (sink, bidet), especially if you're going away for more than 10 days. All water points can be affected by the backup.

An economical, ecological and effortless tip

No chemicals or special accessories are required. The glass + paper trick is: