Dear Mehrzad Pakzadeh The ...

Dear Mehrzad Pakzadeh

The simplest and most effective method of purifying rainwater can be the use of filters with mineral sorbents, which have bactericidal and other properties.
For each family, these can be filters made from plastic bottles, for communities - standard sand filters with the replacement of sand with mineral sorbents.
Drinking water should not only be clean. but also healthy. Distilled water is pure water, but it is of little use and can be unhealthy.