Thanks TEd-- i didn't know all the details-- but yes, there is a pump to bring the water up to what ever height, and fill the barrel and keeps the water flowing. but our 100+ year old water works are still pretty spectacular-- and our water quality is one of the best in the nation, and with out any real treatment ( a bit of filtering, and a modest amount of chlorine) exceeds EPA water quality standards.. i love ny water, and have taken tours of the ny water works.. both supply side and (Ugh!) waste side treatment plants.
and yes, i have heard the same bit of trivia about NYC having more coopers than the rest of the country-- another reason is, until a few years ago, brooklyn was the largest wine producing county in the state-- which always surprised people, who expected some county up in the finger lakes area to lead the pack (and one does now, but i don't know which--Faldage might, since he is up that way)
Manashevits (that spelling looks wrong.. i am sure its wrong-i'll look it up and come back and edit.) the kosher food company, used to make all of its kosher wine in a winery in brooklyn--making Kings County NY the large wine producing county in the state.. they used a few barrels, too.