Watercat Cube - Descaling system recommendation / experiences?

No, that's just normal medium hardness

You can get a test for 5-10€ on Amazon, Ebay, ...
The hardness here in town varies depending on which waterworks supplies the district. Otherwise, it is constant.

If it's about lime and lime stains - the KH is decisive for those, not the GH.

Where am I supposed to do the test - ring the neighbor's doorbell?

What is KH and GH?

Carbonate hardness and total hardness.

Our test was published on the homepage of the city.

So I have received the latest findings about my water. I have a hardness of 29dh and sodium of 49mg/l. With a salt system, I would exceed the maximum sodium value of 200mg/l to achieve around 8dh. What should I do now? Buy a system and then only reduce to 18dh?