Clarity for home water.
Know your water, find the right treatment, and choose with confidence.
Drop your water report anywhere here.
Check local water
See what’s on record near you:
What are you noticing at the tap?
Pick what sounds familiar. We’ll show what usually causes it and where to look next.
Most taste and smell changes come from treatment or plumbing rather than danger, but a few are worth a closer look.
Where a system sits decides what it can fix.
Tell us what you want to fix. We’ll show the kinds of system often used for it, and where in a home they sit.
- Where water entersWater softenerFor hardness and scale, at every tap.
- At the kitchen tapFilter certified to reduce leadLead is a drinking-water concern, so it’s usually treated at the kitchen tap.
The top-rated products by Decode Score.
Each leader is scored for one function, at one exact configuration. Scores are never combined, and we never rank one kind of system against another.
We don’t have a rated leader to show here right now. Leaders appear once a product has a published Decode Score in our database.
Still buying bottled water?
In my home, 1 person drinks about 2 bottles a day.
That’s 2 bottles a day for your home.Sometimes switching doesn’t pay. The Switch will tell you that too.
| Jan | 62 |
|---|---|
| Feb | 56 |
| Mar | 62 |
| Apr | 60 |
| May | 62 |
| Jun | 60 |
| Jul | 62 |
| Aug | 62 |
| Sep | 60 |
| Oct | 62 |
| Nov | 60 |
| Dec | 62 |
730 bottles a year, estimated.
Already have a water system?
Tell us what you have. We’ll show what it covers, claim by claim, and which of those claims are certified.
This home has a softener where water enters and a filter under the kitchen sink.
It’s the hardness-and-lead example from above, installed.Built on records you can check.
Every answer is built the same way, whichever tool gives it. Here’s what’s inside one, and what each part is there to do.
- 01
Evidence over marketing
Certification and lab data outrank what a box says. Every fact carries its source and the date we last checked it, and a claim is labeled as a claim.
Source: certification listing · date we last checked itDecode ScoreDrinking waterEvidence confidence: High - 02
Exact configurations
A certificate covers one model with one cartridge. We always say which, so a result never stretches further than its evidence.
BrandProduct nameModelSizeCartridge - 03
Your household, not an average
Your water test, your taps and the people in your home shape your answers. We don’t fall back on a national average.
Fits your kitchen tapExample: your test shows lead at the kitchen tap, and this exact configuration is certified to reduce it. - 04
Honest about what’s missing
If we don’t know something, we say so and tell you how to find out. Missing data is never shown as all clear.
We don’t know your incoming pressure yet. It decides whether a tankless unit reaches full output. - 05
One connected system
Specialist tools work out sizing, pressure and running cost, and each one takes only what you choose to bring from the last.
Starting from your Water CheckBuilt on the results you shared there. Every answer, from every tool, is built this way.
Go deeper when you’re ready.
Concerns, systems and tools, all in one place.