Because its a straw filter, you cant use the Go to squeeze water into an empty bottle or a pot for cooking (like you might with the BeFree or Sawyer Squeeze). The Pure Electrolytic comes with the same downsides of nearly all chemical treatment options. Without a doubt, this system is inexpensive, lightweight, and wont malfunction like some of the more complicated filters and purifiers on this list., Our biggest issue with Aquamira drops is the mixing process. Keep in mind that the flow rates listed by the manufacturers are going to be realized in optimal circumstances (i.e. All told, flow rate will be an important consideration for groups and time-conscious endeavors, but less of an issue for more casual hikers and backpackers. Not only do the Sawyers included pouches feature flat and handle-less designs that make water collection challenging, but they also suffer from serious durability issues (we recommend using a Smartwater bottle or longer-lasting Evernew or CNOC reservoir instead). We like the concept: similar to the LifeStraw Go below, the Grayl replaces the myriad awkward devices on this listrequiring some level of squeezing, pumping, batteries, hoses, or even chemicalswith a simple and sleek 24-ounce bottle. But uses and budgets vary, and the ideal Backpackers need a stove that is lightweight, dependable, and will get the job done quickly after a long day on the trail. Cleaning pump filters is a slightly more intensive process, as you'll need to unscrewthe apparatus and either removethe filter or extenda brush down the interior. The biggest downside of any chemical treatment is that despite the water being clean, its still unfiltered (in the Utah desert, for example, that may mean brown water with lots of critters). Used by day hikers, trail runners, and mountain bikers who prefer not to carry water as they move, a straw filter allows you to drink directly from the source, as though sipping through a straw (some setups also include a bottle, like the LifeStraw Go). And in comparing chemical treatments, its worth noting that despite being more difficult to use, Aquamira drops are considerably cheaper. Simply fill the dirty water bag, hook up the filter to the port or hose, and let gravity do the work. Whats more, it includes a carbon filter for better-tasting water when drawing from dirty sources. If your filter lasts that long and youre ready for a new cartridge, then youve gotten a lot of use and clean water out of it, making it a solid investment. The upsides to both methods are clear: theyre relatively lightweight, dont require the arduous task of pumping or squeezing, and you get protection against viruses, too (filters only remove bacteria and protozoa). Leading pump filters are listed at about 1 liter per minute, although that seems fairly optimistic to us (the exception is the pricey MSR Guardian, which is speedy at 2.5 L/min.). But we still prefer the Katadyn, which despite the shorter filter life, has faster and smoother pumping action.See the Katadyn HikerMicrofilter. Second, the SteriPen uses a USB-rechargeable lithium-ion battery, and if that runs out and you dont have a portable charger, youre stuck in the wilderness with no purification (SteriPen also offers a few AA-compatible models). For well over a decade, SteriPen has held a unique place in the water purification market. Finally, its worth checking out the LifeStraw Peak Squeeze below, which features a faster flow rate, gravity adapter, and compatibility with standard bottle openings.See the Katadyn BeFree Collapsible Bottle 1L. But where it falls short is in its simplicity: Unlike the Sawyer, the Platypus cannot be used as an inline filter, which really cuts down on versatility. The MSR Guardian is ten times the price of many popular bottle filters here, but this pump is the real deal. Straw Filters It slows you down on the trail, takes some concentration in terms of measuring out the drops, and can bleach your clothing if youre not careful. And finally, with a 2.5 liter-per-minute flow rate, the MSR is ridiculously speedy. Type: UV purifierWeight: 4.9oz.Lamp life: 8,000 litersWhat we like: Lightweight purification without the chemical aftertaste.What we dont: Relies on USB charge. Bottle Filters The QuickDraw System is competitively light at 3.3 ounces and has a grippy, soft-touch exterior with durable caps on both ends, giving it an extra dose of toughness and reducing the chance of contamination. Bottle filtersalso known as squeeze filtersattach to the spout of a soft-sided bottle or pouch and filter water as you drink. Despite all of the recent innovations, the MSR MiniWorks remains one of the most popular pumps on the market. Type: Pump filterWeight: 11 oz.Filter life: 750 litersWhat we like: A versatile and reliable filterthat can make clean water from puddles.What we dont: Relatively short filter life and pricey to replace. To protect against protozoa, bacteria, and even viruses, there is a wide range of water filtration and purification systems built specifically for backpacking (many options on this list are great for day hiking, trail running, and travel too). Finally, keep in mind that when calculating the weight of your setup, that youll also want to factor in your water storage (bottle, reservoir, etc.). As an inline filter, it also works as a gravity setupsimply hang your bladder, open the valve of your drinking hose, and let gravity do the work. Keep in mind that bottle filters are often slower at filtering than a high-performing pump design and require quite a bit more effort than a gravity model. Water filters use microscopic pores to strain out protozoa (such as Giardia) and bacteria (E. Coli and Salmonella, for example). To purify your water, mix 7 drops each of Part A and Part B in the included cap, let it sit for five minutes, and add the mixture to 1 liter of water. Remember, this doesnt mean your water isnt safe to drinkyouve filtered or purified itbut you can always add an electrolyte-enhanced drink mix like Nuun Sport hydrationtablets to make it more palatable (or in the case of Potable Aqua, use the accompanying neutralizing tablets). Viruses are rarely found in natural sources, which is why most backcountry-goers find filters to be fully sufficient. Second, by definition, a filter routes water through an actual sieve, which physically removes debris such as dirt, algae, leaves, and tiny critters. Furthermore, many of these filters and purifiers are made with a great deal of plastic and its fairly likely that youll break another component of the device before the filter expires. Although theyre most commonly used in gravity setups, inline filters also can be paired with a hydration reservoir (purchased separately) to provide on-the-go filtration for solo travelers. Another way to combat foul-tasting water is to use a carbon filter. Available in both liquid and tablet forms, chemical purifiers use iodine or chlorine dioxide to remove protozoa, bacteria, and viruses from water. Its important to note that carbon becomes ineffective before the filter (after approximately six months or 200 liters), so if this is a feature you want to maintain, choose a filter that allows you to purchase the carbon element separately from the complete cartridge. The flow rate is impressive at 3 liters per minute (compared to the Squeezes 1.7 L/min. MSR makes their Thru-Linkfor this very application, and models like the Sawyer Squeeze quickly convert into an inline filter with included adapters. This generally is fine for clear mountain runoff but is not optimal for those acquiring water from smaller or more stagnant sources.See the Aquamira Water Treatment. Type: Pump filterWeight: 16 oz.Filter life: 2,000 litersWhat we like: One of the few pump designs with a ceramic filter.What we dont: Heavier and pricier than the Katadyn Hiker. There was a lot of press surrounding the release of MSRs Thru-Link, and for good reason. Because chemical and ultraviolet purifiers do not filter water, they dont have a flow rate. Not all portable backcountry filters use carbon, but many on our list do including the MSR MiniWorks and Grayl GeoPress.Additionally, some models offer carbon filters as add-ons: the Platypus GravityWorks, for example, sells a carbon element separately that can be added to the existing filter. You simply place the SteriPen in your water bottle or reservoir and swirl until the device indicates youre finishedit takes about 90 seconds to purify 1 liter. Is the process really complete? Finally, keep in mind that with any chemical purification system, you get no filtration and therefore will be drinking all of the particles that make their way into your bottle. But no other bottle filter beats the Grayl purifier for traveling abroad, and its a great replacement for buying water in disposable plastic bottles. Compared to the Katadyn Micropur above, Aquamira is much more of a process, but the good news is that it's cheaper and can treat a variety of different volumes (the Katadyn is a strict 1 tablet per liter and is difficult to halve), which makes it great for group use. Pore size refers to the size of the tiny openings in the filter, and is measured in terms of microns. With a product like the LifeStraw Go,this is as easy as blowing out after each use. Like the Katadyn BeFree and LifeStraw Peak Squeeze above, it makes water treatment as simple as taking a sip, but the hard-sided bottle boosts durability and convenience for casual day hikes and frontcountry applicationsno squeezing or cold hands required. Importantly, the included Platypus bag is also much more durable than those from Sawyer and even features a convenient handle for easy water retrieval. If youre not keen on keeping up your equipment, you can always opt for more carefree models like the SteriPen or chemical treatments like Aquamira or Potable Aqua. The momentum in hiking footwear is moving away from bulky boots toward lightweight shoes and even trail runners that are faster and more comfortable. Third, it's$11 more, and lacks the versatility of the Squeezes gravity/inline adapter. A key product specification that we reference in this article is filter life, or how quickly your filter will need to be replaced. Pump Filters/Purifiers The design excels on long trail runs when water is readily available: the compact filter sits inside the bottle (unlike the protruding Sawyer Squeeze), its wide mouth makes refilling easy, and the whole setup is a feather light 2.3 ounces. Finally, squeeze and straw filters can only move as fast as you can drink or squeeze, although newer models like the Platypus QuickDraw and LifeStraw Peak Squeeze advertise rates of up to 3 liters per minute. For those wanting a dedicated water bottle filter, the LifeStraw Go has a lot of appeal. Gravity does all the work: simply fill up the 4-liter dirty reservoir, hang it from a tree branch or boulder, and in just a few minutes youll have four liters of clean water to drink. unfiltered water). The smaller the pore, the more particles the filter can block. If filters like the Sawyer Squeeze, Katadyn BeFree, and Platypus QuickDraw above have caught your eye, its also worth considering LifeStraws Peak Squeeze. However, we have the MSR MiniWorks ranked here because of our own in-the-field experiences. Further, many bottle and inline filters also can be used as a straw (such as the Sawyer Squeeze Mini), and are by far the more well-rounded choice. Unlike most chemical purifiers that use chlorine dioxide or iodine, the Pure combines salt water and an electric charge to remove contaminants from water. First, it has a relatively short lifespan compared to a filter like the Squeeze (1,000 liters vs. the Sawyer's lifetime warranty), and its known to clog much more quickly in dirty water. Below we cover all the gear you need for your backpacking adventures, including detailed round-ups, reviews, and MSR has been a longstanding leader in the world of backpacking filters, so its no surprise their Guardian has become our go-to pump for trips abroad. Type: Bottle filterWeight: 3.3 oz.Filter life: 1,000 litersWhat we like: Fast flow rate, easy to clean, and durable materials.What we dont: Cannot be used as an inline filter; oblong size is difficult to hold while running. Our top picks for 2022below include everything from ultralight bottle filters and chemical drops to pumps and large-quantity gravity filters. In many ways, the Peak Squeeze is the most well-rounded of the bunch: Like the BeFree, it comes with its own soft flask and is decently easy to carry, making it a great setup for shorter pursuits like trail running and day hiking. Most gravity and straw filters are maintained by backflushing clean water or air through the filter. Using simple mechanics (and some elbow grease), a pump siphons water from the source, through a hose and filter, and out another hose into a clean receptacle. Read more about us., Everyone exploring the backcountry needs water, but staying hydrated is not as simple as drinking straight from streams and lakes. Pumps and gravity systems are the heaviest and bulkiest, and include multiple components like storage bags and hoses. Finally, unlike the versatile Sawyer Squeeze, you only get a tube port on one end, meaning the Peak Squeeze cannot be used as an inline filter with a hydration reservoir. That said, for those who enjoy the process of camp chores and dont mind a little gear maintenance, we certainly understand the appeal. In fact, the Guardian is such a reliable and convenient system that its also used in the military and as an emergency water purifier after natural disasters. Another downside is the rather pricey replacement filter: after approximately 750 liters, youll need to spend $55 for a new one (the MSR MiniWorks recommends a replacement filter after 2,000 liters and that costs $45). Type: Bottle/straw filterWeight: 7.8 oz.Filter life: 4,000 litersWhat we like: Incredibly convenient and relatively long filter life.What we dont: Heavier and bulkier than soft-flask bottle filters. The result is ultimate performance and peace of mindwhen backpacking and traveling in less-developed regions of the world or other high-use areas (viruses are most commonly carried in human waste). One ounce lighter and $16 cheaper than the Sawyer Squeeze above, the Sawyer Mini is one of the lightest and most compact water filters on the market. Additionally, the small 16-ounce pouch isnt ideal for filling up standard water bottles, and weve had bad luck with delamination and leaks on all of our Sawyer bags. With its included HydraPak bottle, the BeFree allows you to drink as you would from any standard water bottle, with the water passing directly through the filter on its way to your mouth. On the other hand, the Katadyn BeFree is only compatible with specific Katadyn soft flasks. In choosing the right backpacking tent, you have a wide range of options from minimalist ultralight shelters to inexpensive and heavier entry-level models. But while the Katadyn is $30 cheaper and lighter at 11 ounces, the MSR has a significantly longer filter life at 2,000 liters (the Hikers is just 750L), with a carbon/ceramic design thats easy to clean in the field. Aside from cost, its noticeably heavier and bulkier than most filtersat just over a pound and packing down roughly to the size of a 1-liter water bottle. And while most newer bladders support the connection system on the MSR (any bladder with Quick-Connect fittings will work), others require you to modify by cutting the reservoir tube and utilizing the two included fittings. But gravity filters arent for everyone: theyre bulkier and heavier than most alternatives, and youll need a fairly good water supply to fill up your reservoir (pumps are better for shallow sources). These designs address our main concern with the Sawyer: the pouches. Pump filters are a great option for small groups (1-4 people), and especially when you need to pull water from shallow pools. In addition, each tablet is individually wrapped and therefore can be modified for the specifics of your trip (with Aquamira you have to carry both bottles no matter the length of your trip). Whats more, with a filter life of just 1,000 liters, its certainly no match in terms of longevity. Most importantly, its both a water filter and purifier, which means you get the highest level of protection against protozoa, bacteria, and viruses, along with a filter that removes debris. Platypus GravityWorks above is one of our favorite water filters for groups, and their QuickDraw offers a nice solution for individuals. Second, the filter is only compatible with42-millimeter openings, so its not as versatile as the Sawyer, which fits a variety of standard (28mm) water bottles. We love these filters for their versatilityin addition to drinking from the bottle or pouch, you can also squeeze water into a separate receptacle for storage. Further, our version became almost unworkable midway through a Utah backpacking trip. UV purifiers like the SteriPen use ultraviolet rays to achieve the same effect. Type: Chemical purifierWeight: 0.9 oz.Treatment ratio: 1L per tabletWhat we like: Simple and light.What we dont: More expensive than Aquamira and youre drinking unfiltered water straight from the source. Type: Bottle filterWeight: 2.3 oz.Filter life: 1,000 litersWhat we like: Extremely light and great for on-the-go hydration.What we dont: Short lifespan and does not fit standard-sized water bottle openings. However, if youre traveling in less-developed regions of the world or just want to be extra cautious (especially in high-traffic areas), a purifier is a great option to have. With especially dirty water sources, pre-filtering can be a great idea even if youre using a filter to treat your water, as it will mitigate potential clogging. Another option is to scoop the dirty water into a Ziploc bag, let the sediment settle, and transfer the clear water from the top into a bottle for treatment. Type: Bottle/gravity filterWeight: 3.9 oz.Filter life: 2,000 litersWhat we like: More durable soft flask and higher flow rate than the Sawyer Squeeze.What we dont: Heavier and shorter filter life. But despite our gripes, no other filter comes close to matching the Squeezes versatility and longevity, which are undeniable draws for those who want to get a lot out of their gear. setup., Though eye-catching and certainly useful for a wide range of scenarios (think traveling in lesser-developed countries or hydrating in camp), the Grayl has limitations. The Sawyer Squeeze epitomizes ultralight water treatment and has been a mainstay on the thru-hiking scene for years. This often takes the form of a simple hose or cap that fits onto commonly sized water bottle openings. But keep in mind that both chemical and UV purifiers forgo filtering, making them good options only when you have access to clear water sources like glacial streams. We use affiliate links andmay receive a small commission on purchases. The good news about chemical purifiers is that you can sit back and let them do their work, rather than pumping or squeezing as in the case of some filters. And while its 100,000-gallon filter life pales in comparison to the standard Squeezes lifetime guarantee, its still incredibly impressive compared to most options here. The Grayl GeoPress Water Filter and Purifier is designed with travel and light adventuring in mind. Read in-depth reviewSee the Platypus GravityWorks 4L. Finally, gravity filters arent our first choice for on-the-go water treatment, as setting up the system can take some time, and youll need somewhere to hang it (something to keep in mind if you're headed above treeline).. . The Sawyer Squeeze (which also includes inline adapters) will do the same job for less and has a longer lifespan, but keep in mind that the connection points arent quite as secure. However, they do have a wait time that must lapse before water is safe to drink, usually between 15 and 30 minutes (and sometimes a full 4 hours for Cryptosporidium) for chemical purifiers, and 90 seconds per liter for a SteriPen. Like the Squeeze, the Mini attaches to its included bag or other compatible water bottle to squeeze filtered water into your mouth or drinking vessel. The device is made of ABS plastic and has a number of hoses and small parts, and weve had pieces snap off of other pumps in the past (not with the Katadyn yet, but it certainly can happen). The primary consideration here is cost: you have the initial purchase price of the item, but after a certain number of liters of water have been filtered, youll need to buy a replacement cartridge. According to the CDC guide on water treatment, a pore size of 1 micron (or less) is needed to filter out protozoa, while youll need a pore size as small as 0.3 micron to filter out bacteria. As with all backpacking gear, youll want to go as light as possible without sacrificing too much in the way of functionality.
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