Search or ask
Search WaterDecoder
Finds contaminants and products by exact name, and points questions to the right tool.
Try a search:
A contaminantLeadIts page: references, testing, treatment.
A productBrand and model numberThe exact model, as printed on the box or label.
Tools that decide
Some questions may need a specialist.
Some of your questions may be best answered by these tools that we built.
- Water CheckWhat your public water system reports.Try asking“What does my utility report for 94110?”
- Product FinderMatches systems to your home. Search never picks products.Try asking“Which filter fits a family of four?”
- CompareTwo products, configuration by configuration.Try asking“Two model numbers, side by side”
- DecodeStart from a taste, smell or stain.Try asking“Why does my water smell like eggs?”
- Well WaterWhat to test in a private well, and how often.Try asking“What should I test my well for?”
- My WaterYour saved results. Search can’t open them.Try asking“Show my saved test results”
How Search works
What to expect when you search.
Search willFind the right pageContaminants, products and tools, by name, model number or a plain question.
Search willSend you to the right toolQuestions about your ZIP, your home or two products go to the tool built for them.
Search won’tPick a product for youPicks live on contaminant pages, and only once their evidence is verified.
Search won’tSee your saved recordsYour water results stay in My Water. Open them there.