Talk:Water gauge

It has been suggested that the "water gauge" article be merged with the "sight glass" article. I would second this, except for the following sentences in "water gauge":

"The world's first water gauge, Woo Ryang Gyae (Korean:우량계), was invented by Jang Young Sil, a Korean inventor and engineer of the Choson Dynasty, under the order of King Se Jong in 1441AD. With this instrument, people could be better prepared with the informations gathered from the survey."

In my opinion, what is being described here is not a water level indication for a boiler or process vessel, but a 'water manometer' for determining a level or difference in level for building and surveying operations.
 * Support, but strip out the Woo Ryang Gyae, clean it up and place it Manometer. Moonraker88 21:58, 22 October 2006 (UTC)
 * Woo Ryang Gyae now moved to Irrigation tank. ––Moonraker88 12:16, 23 October 2006 (UTC)