---
title: "Whole House Water Treatment Buying Guides (2026)"
url: https://wholehousewatertreatment.com/buying-guides
description: "Long-form buying guides for whole-house water treatment: city vs well water, salt-based vs salt-free softeners, and how to size a filter for your home."
lang: en
---

# Buying guides

Long-form explainers for the questions most U.S. households actually have before they buy a whole-house system. No fluff, no scraped specs, no paid placement.

Whole-house water treatment looks straightforward from the marketing pages: pick a tank, plug it in at the main line, drink better water. In practice, the right system depends on whether you are on city water or a private well, how hard your water is, what contaminants your utility or your lab test actually flagged, and how much flow your household needs at peak demand. These guides walk through each of those decisions in plain English so you can size, compare, and install with confidence.

We update each guide on a rolling basis as manufacturer specs, NSF certifications, and the EPA's enforceable limits change. The publication and update dates appear at the top of every article.

- 7 min read
  ## City Water vs Well Water: Which Whole House System Do You Need?
  City water and private wells have very different contamination profiles. Here is how to choose between a carbon filter, a softener, and a well-specific system.
  Read the guide →
  https://wholehousewatertreatment.com/buying-guides/city-water-vs-well-water
- 6 min read
  ## Salt-Based vs Salt-Free Softeners: The Honest Comparison
  Salt-free conditioners are marketed as softeners, but they do not remove hardness. Here is what each technology actually does, and which one fits your water.
  Read the guide →
  https://wholehousewatertreatment.com/buying-guides/salt-based-vs-salt-free-softeners
- 5 min read
  ## Sizing a Whole House Water Filter: Flow, Fixtures, and Tank Size
  Get the flow rate wrong and your shower pressure suffers. Get the tank size wrong and you replace media twice as often. Here is how to size correctly.
  Read the guide →
  https://wholehousewatertreatment.com/buying-guides/sizing-a-whole-house-water-filter
- 7 min read
  ## Iron Filters for Well Water: Air Injection vs Manganese Greensand
  Orange staining, metallic taste, and rotten-egg smell almost always point to iron and sulfur. Here is how to pick the right whole-house iron filter for your well.
  Read the guide →
  https://wholehousewatertreatment.com/buying-guides/iron-filters-for-well-water
- 6 min read
  ## UV Purifiers for Well Water: When You Need One and What to Buy
  Whole-house UV is the standard answer for bacterial contamination in private wells. Here is when you actually need it and how to size a Class A unit.
  Read the guide →
  https://wholehousewatertreatment.com/buying-guides/uv-purifiers-for-well-water
- 6 min read
  ## Water Testing: Home Kits vs Certified Labs (And When Each Makes Sense)
  Drug-store test strips, mail-in kits, and certified state-lab panels all answer different questions. Here is what to use and when.
  Read the guide →
  https://wholehousewatertreatment.com/buying-guides/water-testing-at-home-vs-certified-lab

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