Water is the basic necessity for human to live and yet water pollution is one of the biggest problems they are facing today. Water scarcity is increasing fast due to the rising of population resulting to inadequate sanitation. In addition, waste materials contribute to the continuous destruction of our environment. Organic waste like coconut shell and water hyacinth has the potential to purify water when their carbon is activated. These pieces of information led to the development of a device that would utilize coconut shell and water hyacinth in producing clean water.

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This study utilized the use of Developmental and Experimental Research Design. Developmental research design was used as the study aims to develop a water purifier device and to determine the acceptability of the overall device as water purifier. Experimental research design was applied in determining whether the activated carbon from water hyacinth and coconut shells is possible to be used as raw materials in making a water filtering device.

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Results from testing the effectiveness of the combination of all filtering variables showed that only TDS has improved in both ground and surface water with 129.66 and 145.66 mean in terms of physical aspects. As for its bacteriological aspects analysis, the results also showed that both surface and ground water did not manage to meet the PNSWD limit in all bacteriological properties. The interpretation of data using t- Test for two paired means of before and after filtration using activated carbon showed that the t-stat value is less than the t-critical value two-tailed value. Therefore, PURIEAQUA is not highly effective in terms of filtering physical properties and it showed poor results in purifying bacteriological properties in water.

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Overall, the findings and results of the study indicate that PURIEAQUA is not yet recommended in rural and remote areas where access to clean and safe water is difficult, unless the study is evaluated and improved.