A few days ago, I noticed a [serious issue] in my home: when there was an interruption of water supply from the city, the water in my circuits was depleted very fast (running backward, passing back through the water meter), and then strong air pressure kept the water meter running backward.
I want to solve this problem. My plan is to install a simple one-way valve right after the water meter.
After the water meter, the first thing I have is a device that ensures the pressure in my house stays under 2.5 bars.
This pressure-regulated device was installed by a plumber about a year ago. I wonder if this device contributed to the problem of strong air pressure backflowing from my system.
I plan to buy a simple one-way valve like this.
and install it right after the water meter (before the blue tap). That seems pretty easy to do.
However, I am wondering if there's any downside to doing this? Could this somehow create damage to my system? My biggest fear is pipes bursting inside my house, as they would be pretty much impossible to replace.
PS: I tried to contact plumbers, but I live in the middle of nowhere, and the last 2 plumbers who came actually broke more than they fixed.
EDIT : This question has been marked as duplicate. The website suggests I delete it, but when I do so, it then advises against deleting it. So please just ignore that question.