If you have issues with scale and chlorine odor/taste, a water softener and carbon filter are normally used to deal with that. Have your water tested so you know the hardness and if there is anything else that needs to be removed.
This was the issue I had to deal with. Hard water with a lot of calcium. So I had a whole house water softener installed. They are so common out here, that builders usually supply a plumbing loop on the main inside the garage. That way they just cut into it when you have a whole house water softener installed. It makes installation faster and easier. Plus, if you should ever get a leak, it's contained in the garage by a drain, and not inside the house.
The biggest issue with them, is as a general rule you shouldn't drink soft water. Houses are therefore plumbed with a hard water line to both the kitchen sink, and the fridge water line for the ice maker. That is why I had a under sink R.O. system installed. You have R.O. (Reverse Osmosis) water for drinking, and soft water for everything else inside the house.
Outside hose bibs, irrigation cap off lines, and roof evaporator cooler water lines are bypassed from the main softener input line. Depending on how old your house is, and which part of the country you live, yours could be very similar, or completely different. I had a softener professionally installed, after screwing around with 2 bad units from Lowe's trying to DIY the job.
Same with my R.O. system. Both units installed ran around $1,200.00 give or take. Which I didn't think was too bad at all. I have very good water for drinking, showering, and washing clothes. My salt usage is minimal. 3, 40 pound bags of pellets will last me from 2-1/2 to over 3 months. The softener regenerates about once a week with just my wife and I. Depending on how much wash she does.