Water-treatment decision and pre-trip checklist Ready & Resourceful | Updated October 8, 2026 https://readyresourceful.com/outdoor/water-filter-vs-purifier/ Trip / route: ____________________ Date reviewed: ____________________ Expected sources and current advisories: ____________________ Confirmed safe refill alternatives: ____________________ COMPARE THE EXACT PRODUCT Model: ____________________ Manufacturer instructions URL / saved copy: ____________________ Bacteria claim and supporting documentation: ____________________ Protozoa claim and supporting documentation: ____________________ Virus claim and supporting documentation: ____________________ Limitations / unknowns: ____________________ [ ] Check water availability and current land-manager or public-health advisories. [ ] Match documented protection to the expected source and hazards. [ ] Follow official do-not-drink advisories; do not treat chemical/fuel-contaminated or floodwater as ordinary backcountry water. [ ] Verify every required container, connector, cartridge and power source. [ ] Read product-specific operating, cleaning, temperature and storage instructions. [ ] For chemical treatment, record the exact label dose, contact time and conditions; do not guess. [ ] For UV treatment, confirm water-clarity, volume, power and full-cycle requirements. [ ] Keep untreated-water equipment separate from treated-water containers. [ ] Check product-specific freezing precautions and damage guidance. [ ] Save the instructions offline before departure. [ ] Identify a backup safe-water supply, confirmed refill or route-change plan. Backup arrangement: ____________________ Person responsible for checking equipment: ____________________ Unresolved questions before departure: ____________________ Read the full guide for limitations and safety context. A filter or purifier label does not establish that every contaminated source is safe. This is a planning record, not universal treatment instructions. AI-assisted compilation; no product-testing claim. References: https://cdc.gov/drinking-water/prevention/water-treatment-hiking-camping-traveling.html https://cascadedesigns.com/blogs/msr-gear-guides/water-filter-vs-water-purifier