Out here in El Cajon, the water works hard on everything it touches. The county's water runs hard, and El Cajon households see the evidence daily, the crusted shower heads, the spotted glasses, the scale in the water heater, the skin that never quite feels rinsed. All of it comes from minerals, mostly calcium and magnesium. Your water is hard, so the real question is whether you want to do something about it.
Treatment comes in 2 kinds. Softening takes the minerals out, and you notice it all over the house, less new scale in the plumbing and the water heater, less crust on the fixtures, and showers that rinse clean. Filtration handles the rest, taste, odor, and anything else you want tested for. The 2 systems do different work and often go together, and which combination fits depends on the household.
That answer comes from a plain English conversation about your water. What's actually in your water, what each system genuinely does, what whole house treatment involves versus a point of use setup, what the maintenance really looks like over the years. You hear the tradeoffs on every option, and the decision is yours, at your pace. If years of hard water have left marks on the house, the contractor can go over what to do about them.
