Portable Water Filters
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Hanging Water Filters
Hanging water filters are designed primarily for use in campsites, and they resemble a grocery bag with a tube protruding out of the base. The simplistic design allows the reservoir to be filled, hung from a tree, and then relies on gravity to force the water through the actual filter. The bags can typically hold 2-3 gallons, making them an excellent choice for families and groups. Most hanging filtration systems range in price from $50 - $90.
Micro Filtration Systems
Micro Filtration systems, also called micro filters are the most popular portable water filter among backpackers. They are designed to be both small and lightweight, and yet durable enough to survive rough conditions. They consist of a small canister, tubing, and a pump. The filtration components are all found within the canister and it is important to note that a bottle or canteen is required to store water after it goes through the unit. The price range for micro filters usually starts around $40 and can be as high as $700.
Ceramic Water Filters
Ceramic water filters are technically portable water filters, but are normally designed for use in an RV or a camper. While they can be used to pump water out of a river or stream, the ceramic components are fragile and typically not appropriate for backpackers and hikers. In addition, they are fairly expensive as well and start at $150.
Bottle Filter Systems
Bottle filter systems are normally a little larger than a standard water bottle, but have a very limited capacity. These systems are fairly heavy as well, and not designed for serious backpackers. The simplicity of the unit is one desired benefit, and they can be a great option for short trips. Bottle filters are typically very inexpensive and can be found at prices from $18 - $40.
Gravity Drip Filters
Gravity drip water filters are very similar to hanging water filters in that there is no pumping required. However, the large size typically is only acceptable for use in base camps, cabins, or campers. These water filtration units are also expensive and range in price from $125 - $300.
Choosing Portable Water Filters
A wide variety of portable water filters makes choosing the most appropriate one for hiking somewhat difficult, but there are several important features to look for.
- A micro filter should be easy to clean, or better yet not require any cleaning. It should be resistant to clogging, as this is a common problem shared by many inexpensive filters.
- Some type of carrying case should be included for the protection of the unit, and the portable water filter itself should be fairly durable.
- Inclusion of carbon in the filtration system. Carbon reduces bad taste and eliminate any chemicals that may be in the water.
- Weight is also a factor that should be considered, especially for avid hikers that backpack far into the woods.
Any portable water filtration system should have all of these characteristics and features to be eligible to remain in the running for the best choice.