Water purifiers that do not require electricity to run are available at a meager price in the market. Such purifiers have only UF filter. Only UF purification is not good enough for cleaning hard water unless water source is corporation supply. Therefore, useful advice from my side would be to

Corporation water in any city goes through some primary purification before being released to the local water pipeline. Not all corporations, however, follow an adequate purification process. Are you sure that the water treatment plant run by your city corporation follows all the recommended standards to make unpure water usable? Moreover,