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Sawyer is the worldwide leader in personal water filtration. They are currently being used in over 100 countries around the world providing millions of people with safe drinking water every day. Not only do our hollow fiber membrane filters provide a higher level of filtration, the fibers we use are significantly more robust, allowing them to be used much longer than other filters.
The Sawyer filter removes taste that comes from bacteria, dirt, and green matter.
The Sawyer filter does NOT remove iron, sulfur, other chemicals, or simple compounds. Taste can be masked by using flavor additives like Gatorade or Crystal Light (filter needs to be cleaned immediately after using them).
The Sawyer filters are not made with charcoal. While other portable filters have charcoal, they lack in amount of media and adequate dwell time. Therefore, they only remove small amounts of heavy metals, pesticides, etc. (when used in real life applications). Try using better sources of water, if possible.
Flow rates vary depending on how clean the filter is and how well you cleaned the filter. Altitude also affects the flow rates (the higher you go, the slower the flow.)
Be sure to slowly squeeze the water through the filter, giving the filter fibers time to fully saturate. The initial flow rate may seem slow but will increase as fibers become wetted which usually takes approximately one liter of water.
To maximize the effectiveness and longevity of your filter, Sawyer recommends back flushing your filter after each outing. The fibers are very robust, so please be FORCEFUL in your back flush process. When using the syringe, do not be gentle. It will only form paths of least resistance instead of blowing out the particulates that may be trapped in your filter. When using the faucet adapter, hold the adapter on the faucet and ‘turn the water up’ to ensure particle(s) removal. Do NOT use soap when backwashing your filter.
Before storing your filter, Sawyer recommends sanitizing your filter. This process is simple: Back flush filter. Run a standard bleach solution (fragrance free) through your filter (one cap of bleach per quart of water). Let air dry and then store in a cool, dry place OR store wet and clean before using.
In case you forgot to back flush your filter after your last outing and flow seems too little or diminished, soak the filter in hot tap water (not boiling) for about an hour and then back flush using hot tap water. REMEMBER to back flush FORCEFULLY! When using the syringe, do not be gentle, it will only form paths of least resistance instead of blowing out the particulates that may be trapped in your filter. When using the faucet adapter, hold the adapter on the faucet and turn the water up to ensure particle(s) removal.
If after above steps your filter still seems to be clogged Soak the filter in hot tap water for about an hour and then back flush using hot tap water. If this doesn’t work, it could be dried calcium. Soak the filter in vinegar for 1/2 hour and then back flush with hot water. You may have to repeat this a few times to get it all the way clean. Make sure you back flush with all the force you can – hold the faucet adapter on the faucet and turn the water on. The filters are tough and can take more force than you can give with the faucet adapter.
Your filter is safe from freezing temperatures if it has never been wetted.
While there is no definitive way to tell if a filter has been damaged due to freezing, Sawyer recommends that you replace your filter if you suspect that it has been frozen.
If you are in freezing temperatures, we recommend that you store your filter in your pocket or close to your person so that your body heat can prevent freezing.
It is usually not the pouch causing the leak, it is usually the filter. Either the filter was not completely wetted at first point of use, or too much pressure has been applied to pouch during filtration process. Be sure to slowly squeeze the water through the filter, giving the filter fibers time to fully saturate. The initial flow rate may seem slow, but will increase as fibers become wetted.
Back flush your filter (better and more often) using your syringe. You cannot hurt the filter fibers, so please be FORCEFUL in your back flush process. When using the syringe, do not be gentle, it will only form paths of least resistance instead of blowing out the particulates that may be trapped in your filter.
Do not overtighten the filter on the pouch. Overtightening can cause the o-rings to embed into the threads or lodge into the opening of the pouch. If an o-ring is out of place you may not a have a tight seal and water could leak out the bottom of the filter. Please watch our video on Important Squeeze Filter Tips to better understand how to care for your squeeze bags. Until you learn the perfect balance of force and cleaning, we recommend bringing a backup pouch with you on your trip.
Before the pouches leave our factory, they are 100% air-tested. While they are rugged, these pouches are not indestructible. They tear as a result of too much pressure being applied. This happens when water is forced through the filter too fast or when your filter needs cleaning, which creates more resistance. Do not squeeze the pouch hard or wring the pouch.
No. These filters are designed for use with fresh water only.
No. We do not recommending attaching the personal filter directly to a faucet.