Showing posts with label SHOPPING. Show all posts
Showing posts with label SHOPPING. Show all posts
Sunday, 18 October 2015
Tuesday, 3 February 2015
Wednesday, 5 February 2014
Top cost effective/portable Water Purifiers in the world
1) Lifesaver Bottle: $150
The Lifesaver Bottle: A strong long-term investment for serious water purification.
The Lifesaver Bottle was designed for the developing world, featuring
an all-in-one portable water purifier that could provide clean drinking
water for the 3 billion people that need it at a total investment of
$20 billion. Makes you want to donate, doesn’t it?
As its design goals were simplicity and cost-effectiveness, it
happens to suit the needs of backpackers and hikers just as well, and is
readily available for purchase by first-world consumers, who are
encouraged to participate in a buy-one, donate-one program.
The product itself is great, featuring a filtration and pump system housed entirely within the bottle, so all you have to do is fill it up, pump a few times, and drink.
The bottle has a watertight cap, a carrying strap, and completely
replaceable parts. Aside from its above-average weight of 22 ounces,
it’s hard to find room for improvement.
As for performance, the filter has pores smaller than the smallest
potentially dangerous impurity (a virus), meaning it doesn’t need iodine
or chlorine for treatment. The cartridge cleans 4000 liters, or 6000
for the pricier model, and will shut down once it’s finished, so you’ll
never drink unclean water. Cartridges can be replaced, as well as carbon
filters and a sponge pre-filter, which can also be used to soak up
water found on the ground to squeeze into the bottle.
The Lifesaver is pretty hard to beat in terms of return on
investment. Even at the initial cost of $150, it’s still one of the most
cost-effective water treatment products on the market. Its simplicity
is exceeded only by products such as the Katadyn or GRAYL, which are
cheaper initially, but will become pricier after a few years of
purchasing replacement parts.
The following numbers are estimates for the $150 Lifesaver Bottle
4000, with a limit of 4000 liters, and assume high-frequency replacement
of carbon filters, available in $30 packs of 4 which treat 250 liters
each. Larger bottles and value packs can reduce the long-term costs
listed below by about half.
- Unit price: $150 (4000 liter version)
- Replacement parts: $100 per cartridge, $8 per carbon filter, $6 per pre-filter
- Initial water treatment cost: $0.06 per liter
- Recurring water treatment cost (replacement cartridges + filters): $0.05 per liter
- Empty weight: 22 ounces (623 grams)
Katadyn MyBottle Water Purifier: $50
Katadyn MyBottle: Total water purification, in a sporty package.
I own(ed) an older version called the Katadyn ExStream water purifier
and used it on several trips throughout Asia, South America and Eastern
Europe, and it was quite helpful. It’s another all-in-one bottle design
that makes water purification a non-issue, as you just fill up the
bottle and drink from the nozzle.
The Katadyn both filters the water and purifies it with iodine,
making it clean and safe, with what I found to be a minimal iodine
taste. It’s extremely easy to use and has no pump mechanism or lag time
to get in the way; you just fill up and drink, with the
Sunday, 24 March 2013
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