Could he have siphoned the water from one reservoir to the other?
The clear water is then siphoned or poured off and the glaze is ready for use.
The whole is well stirred from time to time for 48 hours, and the clear liquor is siphoned off from the precipitate.
Every few days some of the water was siphoned off through a piece of hose and fresh water run in.
When the other ...