After boiling water I noticed there are obvious white, suspended matter floating in the water boiler. I have to clean the water bottle almost everyday otherwise those white stuff sticks at the inner bottle.

I didn't see that kind of sediment/suspended matter in other country, is it something special to Switzerland's tap water?

I wonder if I could install some water filtering equipment so I can get rid of them?

Did you properly clean your water boiler every time you use it?

Chalk. Very normal here.

Not with that anti-calc liquid. I only use brushes. Is it recommended?

(Cough) You mean Calcium Carbonate. Chalk doesn't occur in the Alps. Dover and Normandy... now there you get chalk.

I'm a bit lazy to use brita, would prefer something like this:
https://www.amazon.de/wasserfilter-b...erfilter&psc=1

Is that enough to remove the chalk/calc/white matter?

Where can I buy this in Switzerland?

I use Potz from Migros. Great stuff. Yes, it is recommended. And you won't get far with brushes.

It's "Kalk" mate, what ever you wanna call it. And the dictionary says that is chalk in English

Then you need a better dictionary madam.

I do accept belated birthday presents

And I premature.

yeah, you want a dictionary? Can't get that on Sunday though .... so belated again.