Advantages and disadvantages of gravity water filters.
No cost for functioning as Gravity Water Filters use the earth's gravity to push water through the filter.
Can be used away from home and city, e.g. in camping or hiking.
Gravity Water Filters use filter elements that need to be changed regularly or filtration is not adequate and water can be hazardous for your health.
Do not believe the manufacturers claims. For example, if you live in an area where water from the city water supply, well, river or spring is hard, filters elements will clog soon and need to be replaces.
Some such filter elements can be expensive, over $100.00, however some of them last six months or longer.
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