"You put up a wooden tank and forget about it," he said.

In 1921, the wooden tank on the tower was replaced with a metal one.

There are two new wooden tanks; one 500,000 gallon and one 300,000 gallon.

Between 1897 and 1910 the wooden tank was removed and replaced with an additional 30 courses of stone which matched the original structure.

This is a rare wooden tank atop a brick tower type of water tower.

His additions include 1,350-gallon wooden tanks brought from Bordeaux to ferment red wines.

Wine can also be fermented in large wooden tanks, which - when open to the atmosphere - are called "open-tops".

Wood, rather than metal, is the preferred material, he said, because wooden tanks are more durable and much cheaper to build and maintain.

The Rosenwach business is the last company in New York to manufacture wooden tanks.

Q. Why doesn't the water in rooftop wooden tanks freeze in winter?