How do I clean and maintain the hydration system to prevent mold?

After each use, drain the reservoir completely, rinse with clean water, and prop it open to dry thoroughly. For deeper cleaning, use hydration-specific cleaning tablets or a mild bleach solution (1 teaspoon bleach per liter of water), let it sit for 30 minutes, then rinse thoroughly. Clean the hose by using a long flexible brush designed for hydration tubes. Store the reservoir open and dry between uses. Replace the bite valve every 1–2 seasons. These habits prevent mold, bacteria, and unpleasant tastes.