| 摘要 |
A high-capacity, ecological purifying filter for non-potable, rain or other water, made of very strong materials lasting for more than 20 years. It may be cleaned and regenerated completely and simply by the user with its accumulable system of compartments filled with sand or sand with gravel, activated carbon (optional but recommended), gravel and where necessary, raw materials that remove additional contaminants in non-potable water. The financial cost of obtaining drinking water generated by this purifying filter is much lower than any other existing commercial filter. Its usefulness can be compared to that of a domestic appliance that is essential for daily life, but with the characteristic of being a product whose purification process is not contaminating, as it does not require any form of energy to work. The purpose of this invention is to help provide water-purifying filters that give users independent, low-cost access to drinking water, either in day-to-day life or following a natural disaster.
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