Pure Whole House is an independent research publication about residential water treatment. We write in-depth guides that help homeowners choose the right whole-house filtration, softening, and disinfection equipment, without the marketing fog.
Why we started Pure Whole House
Shopping for a whole-house water system is one of the worst buying experiences in homeownership. The equipment costs $1,000 to $3,000 or more, the terminology is a fog of acronyms, and most of the “reviews” ranking on Google are written by people who sell the equipment, or by content farms that have never read a spec sheet. We built the site we wished existed: one where the first question is always “what’s in your water?”, and every recommendation follows the test results, never the commission schedule.
The problem we’re trying to solve
Too many homeowners are sold a system before anyone asks what their water actually needs. Carbon filters get sold for iron problems they can’t fix. Salt-based softeners get sold to people who wanted scale control without the salt hassle. Two-thousand-dollar guesses get made where a $30–$50 lab test would have settled the question. The industry doesn’t run on information; it runs on confusion, and confusion is expensive. Our job is to remove the confusion before you spend the money, including telling you when you don’t need a filter at all.
What we do
For every system we cover, we research the things that determine whether it will actually work for you: manufacturer specifications, NSF and WQA certification listings, installation manuals (drain, electrical, space, and difficulty), maintenance schedules, replacement media and salt costs, and 10-year total cost of ownership. Then we write it up in plain language, caveats included, with the evidence chain visible: what the manufacturer claims, what independent certification confirms, and what that means for your water.
What we don’t do
We don’t fake hands-on testing. We haven’t installed every system we write about, we don’t run a laboratory, and we don’t invent credentials we don’t have. When we haven’t tested something, we say so, and we show our work instead: the spec sheet, the certification listing, the manual, the math. We also don’t publish generic product summaries. Every guide is researched to answer a specific question, not to fill a template.
Our research process
- Manufacturer documentation. We review technical specifications, installation manuals, and warranty documents, the paperwork that says what a system actually does and what it costs to own.
- Certification databases. We check NSF and WQA certification listings ourselves rather than accepting marketing claims at face value.
- Independent sources. We cross-check what we find against EPA guidance, state agencies, and utility water-quality data.
- Ownership economics. We calculate the full picture, equipment, installation, replacement media, salt, and service, not just the sticker price.
- Editorial independence. Manufacturers don’t pay for rankings. Affiliate relationships never determine what we recommend.
Manufacturer claims vs. verified performance
A claim on a product page and a line in an NSF/ANSI certification listing are not the same thing, and we never treat them as if they were. Throughout this site, manufacturer claims are labeled as manufacturer claims. When an independent certification or test backs a claim, we cite it. When nothing backs it, we say that too. If a contaminant matters to you, look for the certification that covers it, our guides point to the listing, not just the marketing copy.
How we make money
Pure Whole House is reader-supported. When you purchase a system through links in our reviews, comparison tools, or guides (including via Amazon Associates, Awin, and Rakuten affiliate partnerships), we may earn a commission at no extra cost to you. We also link to manufacturers where we earn no commission at all whenever their equipment is the right technical match for your water. Commissions never influence our research, 10-year cost math, or recommendations — read our Affiliate Disclosure for full details.
Who this site is for
Homeowners on city or well water who are considering whole-house treatment and want the mechanism, the numbers, and the honest limitations before spending four figures. If you want a quick answer, our Find Your System quiz gives you two or three honest recommendations in four questions. If you want to understand your water first, start with Water Treatment 101.
Our editorial standards
No pay-to-rank. No fake testing. No generic AI product summaries. Manufacturer claims are labeled as manufacturer claims.
Our methodology
How we evaluate products, what evidence we trust, and in what order: How we review water filters. We also publish original datasets, cost of ownership, flow rates, certifications, and replacement costs across 49 systems, in our Water Treatment Databases.