How to Test Your Home Water Before Buying a Filter
Before You Buy a Water Filter, Start Here
When I first started researching water filters, I made the mistake many people make:
I started shopping before understanding my water.
There are hundreds of filters available.
But the best filter depends on one thing:
What is actually in your water?
Testing your water helps you avoid spending money on a system that does not address your concerns.
Step 1: Check Your Local Water Report
If you receive municipal water, start with your Consumer Confidence Report.
This report provides information about:
detected contaminants
testing results
compliance information
The EPA recommends consumers review their local water quality information to better understand their drinking water.
Step 2: Use EWG's Tap Water Database
The Environmental Working Group's Tap Water Database is another useful resource.
Their database allows you to look up information about contaminants detected in local water systems.
Their water filter guide also helps match filtration technologies with specific concerns.
Step 3: Consider Testing Your Own Tap Water
Your home's water may not be identical to what leaves the treatment plant.
Things that can affect your water include:
old plumbing
pipes
fixtures
household water lines
This is especially worth considering if:
you live in an older home
you have a private well
you are concerned about specific contaminants
The EPA provides guidance for homeowners interested in testing their drinking water.
What Should You Test For?
Depending on your situation, common tests include:
Lead
Especially important for older homes.
PFAS
Important if you are concerned about "forever chemicals."
Nitrates
More common concerns for private wells and agricultural areas.
Bacteria
Especially important for private wells.
General Water Quality
Including:
hardness
minerals
chlorine
pH
Don't Let Testing Become Overwhelming
This is where many people get stuck.
They hear about:
PFAS
microplastics
heavy metals
pesticides
VOCs
And suddenly improving water feels impossible.
Remember:
You do not need to solve everything at once.
Start with:
Understanding your water
Identifying your biggest concerns
Choosing a filter that addresses those concerns
Our Approach
For our family, we focused on the things we interact with every day.
Water was an easy decision because:
we drink it daily
our kids drink it daily
we cook with it
it required almost no lifestyle change
Sometimes the best low-tox improvements are the boring ones.
The ones you barely notice.
The ones that quietly make everyday life a little better.
