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What's In My Tap
We break down common contaminants, city-water context, and filter reviews so you can choose treatment based on what is actually in your tap, not a generic best-seller list.
Filters Reviewed
Contaminant Guides
Research Hours
Popular Starting Points
Start with the contaminant or water profile you already know, then drill into treatment options and matched reviews.
PFAS (Forever Chemicals)
Man-made chemicals found in 45%+ of US tap water, linked to cancer and immune system damage.
Lead
Toxic heavy metal leaching from aging pipes and solder, with no safe exposure level for children.
Iron
Common in well water, iron causes orange staining, metallic taste, and plumbing damage at high levels.
Bacteria & Microorganisms
Pathogenic microorganisms including E. coli and Giardia that can cause severe gastrointestinal illness.
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Contaminant Discovery
Browse the most common tap-water concerns to see health context, removal methods, testing advice, and filters matched to the problem.
Contaminant guides grounded in practical treatment decisions
Independent filter reviews with transparent affiliate disclosure
Tools built to start from your water profile, not a generic best-seller list
PFAS (Forever Chemicals)
Man-made chemicals found in 45%+ of US tap water, linked to cancer and immune system damage.
Lead
Toxic heavy metal leaching from aging pipes and solder, with no safe exposure level for children.
Iron
Common in well water, iron causes orange staining, metallic taste, and plumbing damage at high levels.
Bacteria & Microorganisms
Pathogenic microorganisms including E. coli and Giardia that can cause severe gastrointestinal illness.
Hard Water (Calcium & Magnesium)
Excess calcium and magnesium minerals causing scale buildup, appliance damage, and dry skin/hair.
Chlorine & Chloramine
Disinfection chemicals added by municipalities that cause taste/odor issues and form carcinogenic byproducts.
Nitrates & Nitrites
Agricultural runoff contaminants that pose a severe risk to infants (blue baby syndrome) and pregnant women.
Arsenic
Naturally occurring toxic metalloid linked to skin, lung, and bladder cancers even at low concentrations.
Featured Filters
These are the highest-rated filters in our current library based on certifications, contaminant fit, and real-world practicality.
Every review keeps affiliate disclosure visible and keeps the recommendation tied to the contaminant problem it solves.
If you already know your concern, jump straight into the quiz or browse the reviews to compare installation type, budget, and maintenance profile.
Waterdrop
Tankless 800-GPD reverse osmosis system with UV sterilization, smart TDS faucet, and industry-leading 3:1 drain ratio.
Best for: Families wanting the purest drinking water with fast flow and UV sterilization
SpringWell
Premium catalytic carbon whole-house filter for chlorine, taste, and odor reduction that can be paired with point-of-use PFAS treatment at the kitchen tap.
Best for: Homeowners who want whole-home pretreatment and plan to pair it with a dedicated drinking-water filter
SpringWell
Smart salt-based water softener with Bluetooth control that eliminates hard water scale and protects plumbing and appliances.
Best for: Homes with moderate to extreme hard water causing scale, dry skin, and appliance damage
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Newsletter
New filter reviews, water-quality context, and clear next steps when a contaminant guide or city lookup changes.