Unexpected benefits of rain that few people know

Specialties every coming summer are fences, each coming rain not only dispels the summer heat but also saves useful effects to people. That is why my grandfather used to catch rainwater.

Rainwater is formed from condensation of water above and falling so it is somewhat cleaner than other types of water from lakes, rivers and streams, etc. Rainwater contains little iron and some soluble mineral salts so it is less fishy and mild acidity however will gradually decrease during storage.