Product review

01 Jan, 2020

Aquamira Drops

Tested by: Russ





Miles used:


Times replaced:



There are so many options out there on the market for water treatment, filters, pouches, straws, pumps, the list goes on. So why Aquamira chemical drops?


Why Aquamira drops?

I’ve been using my Sawyer Squeeze filter for years, but it’s always good to have a backup for a number of reasons. The nanotube filters like the Sawyer can freeze and when they do they break and are rendered useless. If you drop a filter and crack it which can happen, then it’s also time for a backup. That’s where the Aquamira drops come in. If they freeze, you can thaw them out and they’ll still work making them perfect for winter walking. Furthermore, they’re sometimes more convenient than filtration and can be much faster, depending on which filter you’re using. Having a backup will also ensure you’re never without water. While nanotube filters are incredibly effective and filter out 99.9% of bacteria and protozoa, sometimes you may come across a water source which is so heavily contaminated you’ll want that extra measure. 


How well does it work?

I’ve used it on many hikes so far from the W3K to the PCT and never gotten sick, so the drops must be doing their work.


What’s there not to like?

The bottles are sadly very fragile and over time can get cracked, especially in the corners so it’s worth keeping them wrapped in gorilla tape once you have your hands on them. They also don’t come without a chemical after taste, it’s a bit like chlorinated pool water. Lastly, they don’t filter out grit and particles so if you’re collecting water from a silty source, use your buff to filter out the nasty bits and you’re good to go.


Value for money

These tiny bottled will purify 30 gallons of water which some have said is enough for an entire thru-hike. They’re also easy to pick up in the USA in an REI or other outdoor gear store. 


I made Thrunotes

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  • Effectiveness 99% 99%
  • Value to weight ratio 90% 90%
  • Value for money 80% 80%


  • Lightweight
  • Reliable
  • Ideal for winter walking
  • Kills 99.9% of bacteria


  • Chemical taste
  • Bottles can crack



£9.99 on Amazon


68g (2.39oz)

Active ingredient:

Chlorine Dioxide


  • Kills odour-causing bacteria
  • Enhances the taste of stored potable water
  • 4-year shelf life
  • Treats up to 30 gallons
  • Easy to Use

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