Why not just plug the sink?
Many people ask, “Why not just use a regular stopper?”
The truth is, sink stoppers aren’t always completely airtight. They can also dry out or shift slightly while you’re away, especially if the sink is slightly tilted or if there are temperature fluctuations.
The glass, turned over onto a sheet, allows for a passive, pressureless closure , which limits air exchange and provides mechanical protection against intrusions.
What if you have two sinks?
No problem: simply 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 outlets can be affected by backflow.
