With a few household or hardware store items, these easy, DIY observation methods can clue us in to both the helpful and harmful properties our water source may be harboring. While they won’t deliver precise, quantifiable or lab-grade results, they provide a practical starting point for curious or concerned public water consumers.

Your water may look clean, but is it truly toxin-free and nourishing? Discover the best kits and tests for detecting hidden contaminants or deficiencies — so you can take targeted steps to purify, upgrade, and replenish your daily source of hydration.