Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Does it filter sea(salt) water too?
Document: I was just happy to have clean water that wasn't going to make us or our pets sick.As for hiking, they have added a lot of weight to my pack. Also, they are highly pressurized once you filter the water, so make sure you have the mouth piece in your mouth or over your storage container when you open it. Also, the directions for getting started are kind of frustrating.
I loved the concept, but the limits of the lifespan from the date you start using it (rather than an amount of water filtered) is absolutely unacceptable. It's a way to get you to buy more filters. As a result, I switched to the Kaytadyn pocket filter for slightly more money and many more benefits (size, weight, water filtered, etc. ).
I took it to Peru with me because I have a delicate system. I used it to filter the hotel water then put it in smaller filtered bottles for drinking. No problems from the water but I had some honey which was bad news. I will use this on my tap water rather than waste it now that the bottle has been opened to save on bottled water at home.
I am convinced that this device still shows the most promise save for the experience I had. I am hoping there is a resolution to the plastic tasting water soon.My fallback will probably be a the top of the line Katadyn PocketKatadyn Pocket Water Microfilterwith 'only' a 200 nm ceramic filter and an external activated carbon filter.
The snap on cap scraps off plastic from its underside.. after using a few weeks the ridge on underside of cap is shredded.. i am afraid to submerge it into dirty water..I would have preferred to see this filter in a more conventional pump system. holding 750ml of water or whatever is not much anyway... i end up using it only as a pump to refill other bottles, especially considering that it tends to leak from base.
...instead of Amazon. Didn't know Amazon carried it. This purifier was intended for wilderness trips in the US. Sadly, it did not produce good tasting water as shown in the marketing videos. The water tasted like cheap plastic...even with the activated carbon filter installed. The bottle COULD have been filtering to the 15 nm spec but I had no way to test that. So, it MIGHT have been safe, but tasted awful.
When combined with small bottle of water (which can also be used for water container for this filter), one can save a lot of weight when going on a long hike. But not so much on short 1 hour hikes.Cons:1)Rather bulky. This bottle is about 70% size of 1 liter coke bottle (large size).2)Water comes out in small streams and its flow can't be controlled.
I purchased this item in case of some &#34;event&#34; taking place in the world. The filter works for up to 6,000 liters which is fantastic. The only issue I have is the order of explanation for prepping the filter and bottle for use. I did everything it told me to and then read more. Apparently, once you add water to the bottle/filter (prepping for use) you must ALWAYS keep the filter wet or you will have to purchase another filter.
Overall, I am very happy with the quality of the water.I did have a chance to test this bottle's ability to filter impurities using slightly colored water. I have to say I was impressed with the results. The water tasted pure and rather good.Even though this wattle bottle is bulky in size (not weight), I think it saved me a lot of extra weight carrying heavy doses of bottled water.
Mostly awesome water filter.. it does what it says it will do, which is a pretty amazing feat. As some other reviews have said, the water does have an ever-so-slightly plastic taste. We've only run maybe half a dozen fill-ups through the filter so far. Wonder if this taste could be somehow related to the glycerine that coats the filter prior to priming? We primed it exactly according to instructions, so will wait to see if the plastic taste goes away.
Answer: yes