What’s on the Drinking Water Outdoors poster
A 5-row table: Method · Removes · Misses.
Educational reference. Each method has different coverage.
- Boiling 1 min — Bacteria, viruses, protozoa — Chemicals, sediment
- Filter 0.2 µm — Bacteria, protozoa — Viruses
- Chlorine dioxide — Bacteria, viruses, most protozoa — Slow on cryptosporidium
- Iodine — Bacteria, viruses — Cryptosporidium; not for long-term use
- UV pen — Bacteria, viruses, protozoa — Needs clear water; battery
Educational reference. Pre-filter cloudy water through cloth first: sediment shields organisms from UV and chemicals alike.
Questions about the Drinking Water Outdoors poster
- What’s on the Drinking Water Outdoors poster?
- A 5-row table: Method · Removes · Misses. Educational reference. Each method has different coverage. Boiling 1 min — Bacteria, viruses, protozoa — Chemicals, sediment; Filter 0.2 µm — Bacteria, protozoa — Viruses; Chlorine dioxide — Bacteria, viruses, most protozoa — Slow on cryptosporidium; Iodine — Bacteria, viruses — Cryptosporidium; not for long-term use; UV pen — Bacteria, viruses, protozoa — Needs clear water; battery. Educational reference. Pre-filter cloudy water through cloth first: sediment shields organisms from UV and chemicals alike.
- Who is the Drinking Water Outdoors poster for?
- Drinking Water Outdoors belongs to the Practical skills section rather than to a school year, because life skills is not something one grade owns. Anyone learning outdoors can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Drinking Water Outdoors poster?
- Boiling is the most reliable method. Filters and tablets have specific gaps. A wall chart earns its place by being glanceable from where the work is happening, so Drinking Water Outdoors belongs on the wall where that life skills work actually happens, within glancing distance, rather than filed away.
- What other posters go with Drinking Water Outdoors?
- Building a Fire, Six Knots and Foraging Safety sit alongside Drinking Water Outdoors in the Practical skills section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Building a FireSix KnotsForaging Safety
- Is the Drinking Water Outdoors poster free to download and print?
- Yes. Drinking Water Outdoors downloads as a free PDF with no account, no email and no watermark, like everything else in the Practical skills section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Drinking Water Outdoors poster print at?
- Drinking Water Outdoors is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Drinking Water Outdoors loses nothing.Printing guide
Related posters
Charts that sit alongside Drinking Water Outdoors on the same wall.
Browse every Practical skills poster, or start from the full catalogue.