User blog comment:Adji.is.cool/What would happen if percy fought in rain?/@comment-4017665-20111128073351/@comment-3146930-20111128074246

Not always. What makes up rain water is very much based on where the water comes from originally. Rain that is closer to oceans will have a higher salt content and be almost the exact same thing as Sea water. Water that is more inland will be cleaner water with less salt and be more like River water