Sawyer filters offer the highest level of filtration available,
therefore they are removing more seen and unseen particulates than you
are used to filtering. Even water that looks sparkling clear can
actually be loaded with very fine particulate - which is what makes the
water sparkle.
Depending on the quality of the water you may need to clean the filter
more often and we have supplied this lightweight syringe to make field
cleaning simple.
Before the pouches leave the factory they are 100% air tested, and while
they are rugged, these low cost pouches are not indestructible. They
tear as a result of too much pressure being applied and this happens
when you try to force water through the filter too fast, or your filter
needs cleaning and is creating more resistance.
To avoid breaking your pouch:
1. Do not squeeze the pouch as hard or wring the pouch.
2. Backwash the filter more often and with more force. You should bring
the syringe with you on your trip, especially if you are on a multi day
trip. It is important that the first backwash is strong so that it
cleans out all of the fibers rather than creating paths of least
resistance. The filter and syringe together weigh 4 oz which is still
much lighter and more compact than other filters.
3. Don't over tighten the filter on the pouch. Over tightening can
cause the o-rings to embed into the threads or lodge into the opening of
the pouch. If the o-ring is out of place you may not a have a tight
seal and water could leak out the bottom of the filter.
With all new technology, it takes time to learn how to best use it.
Until you learn the perfect balance of force and cleaning, we recommend
bringing a backup pouch with you on your trip.
Spare pouches come in packs of 3 and are available through
http://www.REI.comor
http://www.Amazon.com.