In-depth answers to the water questions people actually ask.
Find Your Fix: What’s in Your Water — and What Actually Removes It — the contaminant-by-contaminant map to the treatment type that actually removes it.
- How to Spot an Honest Water Treatment Company (The WQA Code of Ethics, Translated) — How the WQA Code of Ethics helps you tell an honest water treatment company from a scare-tactic sales pitch.
- Erin Brockovich, Hinkley, and the Chromium-6 Still in America’s Tap Water — The Erin Brockovich story was true — and chromium-6 is now in tap water serving more than 200 million Americans. Here’s what to know.
- Legionella in Water: Symptoms, Testing & What Removes It — Legionella bacteria thrive in warm water systems — and the real danger is breathing the mist, not drinking the water. How to test and what actually removes it.
- Lead in Drinking Water: Where It Comes From and What Actually Removes It — Lead gets into tap water from old pipes and fixtures, not the source. EPA’s health goal is zero — here’show to test and which filters are certified to remove it.
- Fluoride in Drinking Water: When There’s Too Much
- Water Ionizers, Explained Honestly
- What Your Water Is Doing to Your Water Heater
- pH in Drinking Water: The 0–14 Scale, Explained
- The Only Thing That Actually Softens Shower Water
- Sawyer Squeeze vs LifeStraw: Which Portable Filter Wins? — A head-to-head test of two popular portable filters to see which one deserves a spot in your pack.
- The Truth About Fluoride-Removal Pitchers (Most Don’t Work) — Most pitcher filters barely touch fluoride — here’s what actually works and how the honest options compare.
- RV Water Filtration for Full-Timers: The Setup That Actually Works — The complete RV water filtration setup for full-time travel, from the hose bib to the tap.
- Hose Filter for Filling a Pool: What Works — What garden-hose water puts in your pool and the three filter levels that actually keep it out.
- TDS Meters: What Your Reading Actually Means (and What It Doesn’t) — What your TDS reading really tells you about your water — and the contaminants it can’t detect.
- NSF/ANSI Standards Decoder: What Those Numbers on the Box Actually Mean
- EPA Drinking Water Standards Decoder: MCL vs. MCLG and What the Legal Limits Actually Mean
- Water Distiller vs. Reverse Osmosis: Which One Should You Actually Buy? — Distillers and reverse osmosis systems compared on purity, cost, speed, and convenience.
- Do Shower Filters Help Hair Loss? An Honest Guide — An honest look at whether shower filters can help with hair loss, and what the evidence says.
- Well Water Test Kits: Strips vs. Lab Tests, and Which You Actually Need — Test strips vs. lab tests for well water, and which contaminants to screen for first.
- The Periodic Table of Your Water
- Water Games
- Filter Media, Explained: What’s Inside Your Filter — and Why Your Water Smells Like Fish
- WQA’s Own Numbers Prove It: Consumers Want Education First
- City Water vs. Well Water: What’s In Yours — And How to Remove It
- How Your City Water Gets Treated: From the Reservoir to Your Faucet
- LifeStraw vs Sawyer MINI: Which Portable Water Filter Should You Carry?
- Water Dowsing: The Old Way of Finding Water — and What Science Says About It
- The Running Toilet: How a Worn Flapper Can Waste 200 Gallons a Day
- 3M’s $7.35 Billion PFAS Settlement: What It Means for Your Drinking Water
- How Long Can You Store Water? An Installer’s Honest Answer
- Contaminants A to Z
- Filtration Methods
Friday Fact
Short weekly water facts, in plain English.
- Friday Fact: The Great Pumpkin Boat Race — giant pumpkins hollowed into boats really do float — simple buoyancy — and the same water smarts say drain your garden hoses before the freeze.
- Friday Fact: The Dam That Had to Be Refrigerated — How Hoover Dam’s concrete was cooled with 580 miles of water pipes so it wouldn’t crack as it cured.
- Friday Fact: In Watercolor, Water Does the Painting — water does the real painting in a watercolor; your tap water carries things the same way, and a test strip shows you what.
- Friday Fact: Some Trees Drink the Fog — some coastal redwoods catch water straight from fog; here’s why source water matters before it ever reaches your tap.
- Friday Fact: When Lakes Flip in the Fall — when lakes flip in the fall, your tap can taste earthy for a week or two; here’s why, and the one-minute fix.
- Friday Fact: That Bang in Your Pipes Has a Name — that bang in your pipes has a name: water hammer.