"Mit Wasser beginnt alles von Neuem."
At least in Australia all the other mentioned translations seem uncommon...I'd probably say 'starts again' or 'starts from scratch'.
What is this supposed to mean? Is this a German idiom? Is this an English idiom in place other than where I'm from? I thought perhaps the meaning was "water makes everything like new". The phrases from the other feedback ("with water everything starts from new", "...begins anew", if I understand correctly) also don't make any sense to me...