I need to buy a water softener, but I don´t know how to choose it.
I don´t know nothing about, so would you please let me know key data about water softener systems, brands (good ones).
I need to buy one this weekend, so I don´t have so much time to read.

Thanks in advance for your help

You post says that you needed to buy a softener last month.
If you haven't bought one yet then please don't buy one until we go through some very important information. If you have then let me know what kind you got and hopefully you are pleased with it.
I would love to help.
Have a great day