Siphon apparatus for making water descend
Vessel A kept half-full, a siphon of air, water and bucket, and paired buckets
The sheet studies the raising and lowering of water by siphon. An upper apparatus set on a bench feeds a tall curved pipe rising from a tank marked A, with a warning that the vessel must always keep water above its inlet and outlet or air will fill the conduit. A lower figure, labelled with air, water and bucket, demonstrates the way water descends through a siphon, and a pair of buckets at the lower left illustrates the manner of buckets.
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Vessel A must never run dry
Vessel A, feeding the tall arched pipe, must always keep half a braccio of water above its outlet and inlet. If it were let empty entirely, air would enter and fill the conduit of the mountain, breaking the flow.
How water descends through a siphon
The lower figure shows the way water descends through a siphon (cicognola). Its parts are marked air, water and bucket, tracing the path of the liquid over the bend of the pipe and down into the receiving vessel.
The manner of buckets
At the lower left a pair of open buckets is drawn to illustrate the manner of buckets used with the apparatus.