Test before choosing
Test the water and identify the concern before buying equipment. Different treatment technologies address different substances; one filter does not answer every problem.
Match the system to the use
A point-of-use unit serves one outlet. A whole-home system treats water as it enters the property. Softening addresses hardness and should not be treated as a guarantee of drinking-water safety.
Check performance and maintenance
Choose equipment with documented performance for the issue identified. Follow its maintenance instructions.
Discuss the practical details
Bring Deep Blue your test results, source-water information, approximate demand and installation photographs so we can discuss suitable options.
Further reading: CDC · Official guidance