When you change the filter material - Please note the detailed response below. This filter must be of some chemicals or boiling water can be used safely. This filter is only the first step, a pre-filter before chemical often get this question: "How many liters / gallons you must first change the filter elements?" The answer is not so simple, it all depends on what you pay at the top of the filter. If you set pretty clean, clear water in the inlet filter activationCarbon takes a long time. Six filter stagnant pond water is not that long. The wad of synthetic fibers for the top will be dirty after a few days, and if there is a high number of algae in the water slows down the filter. I bring in more to replace the fiber in the field. You can also use the plug fiber and wash it in clean water if it is important in its own debris. I usually do not carry more carbon pellets, to replace them in the bush. They are very cheap, a barrelPellets for the last year. Overall, the pellet in doubt, we are talking about 5 cents worth of coal here. My general rule when I used the filter many times I head the ball before. This filter is often used by groups of students to survive and be easily filtered water enough for five people in four days. Not always travel to the carbon so it comes back to what we had to be filtered. This filter should be used withsome ...
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