Materials.1). Crushed, Dry Clay.2). Organic material (tea leaves, cofffee grounds, or rice hulls).3). Water.4). Cow Manure.Unfortunately it is fact that the majority of the civilised world’s water has to be fitered and purified before we have a chance to drink or use it. The reason is because of the hundreds of years of industrialisation and also the pollution that it has brought to our air, soil, and water. Leytonstone Plumbers advise on water filtration. But, most water filters are quite pricey and is a technology based solution to the problem, and this is not a real option for many under privileged people all over the world who have to live with polluted water supplies. A Leytonstone Plumber carries the correct tools for the job. But a clay water filter could be the inexpensive, practical solution that is required. The DIY clay filter needs very few and mainly common ingredients, and can be made very quickly and easily. The filter is constructed of clay, and organic materials (coffee grinds or rice), water and manure. Straw and rice are mixed with the clay and water and then fired over burning manure. These organic materials are burned off during the firing process and make small passages in the filter that let water, but no pathogens, to filter through. This filter effectively removes 96-99% of E. coli in the water. This type of filter can make a litre of drinking water in a couple of hours. You can make your own, just by following this:Instructions.Mix up enough water to make a stiff biscuit-like mixture and form a round pot that is closed at one end.Dry the pot in the sun, then put straw all around it and put it in a pile of cow manure.Light the straw and then use the burning manure as required. The process will be completed in less than an hour.“