The MSR Trailshot is hardly a pump filter in the traditional sense of the class. However, it doesn’t really fit into any of the other classes. Given its dimension , weight , value ($50), and velocity , the TrailShot looks as if the right system for jaunts the place there are many water sources to dip into. Upon first use, it was clear that this product is a winner for such exploits. We didn’t get sick on that trip, however care must be taken to keep the TrailShot flowing nicely.

And in case your filter fails, you’ll be capable of sterilize water in a pinch. Gravity filters work in an analogous method to squeeze filters, and sometimes use the same inline filter, however they let gravity do the work as an alternative of your palms. Some function higher than others, however they’re usually simple to function, although they take some time.

MSR claims the filter cartridge lasts up to 2,000 liters, but I am pretty positive ours didn’t come shut earlier than needing a alternative. Generally talking, pump filters have been around so much longer than most.

Speed varies between fashions, and their basic professionals and cons are similar to squeeze filters. That stated, the luggage that include gravity filters are sometimes overbuilt and heavier than easy squeeze bladders.

However, they’re cumbersome, heavy, and not really ideal for bikepacking. However, they work nicely and are generally quicker and perhaps a bit more dependable than squeeze filters. In case of freezing climate, hold the filter in a pocket, sleeping bag, or in any other case close to your individual. Another trick for “cleaning” soiled water is using Aluminum Sulfate, also called alum. Alum is sold in powder type and could be found in most grocery shops .