Hydrant draining

A hydrant (100;200;300) comprising:

• a riser pipe (102;202;302) having an interior (104;204;304) and an exterior and a shut-off element (108;208;308) configured to be moved from at least one open position to at least one closed position and vice versa,
• wherein the shut-off element (108;208;308) is adapted in the closed position such that the interior (104;204;304) of the riser pipe (102;202;302) can be sealed against a hydrant inlet (106;206;306),
• wherein the hydrant (100;200;300) has at least one first passage (114,114′,114″;214;314), configured to bring the interior (104;204;304) of the riser pipe (102;202;302) into fluid connection with the outside of the hydrant (100;200;300), and a second passage (116,116′,116″;216;316), configured to bring the pressurized hydrant inlet (106;206;306) into fluid connection with the outside of the hydrant (100;200;300), and
• wherein the first (114,114′,114″;214;314) and second (116,116′,116″;216;316) passage are brought into operative connection with one another, wherein this operative connection generates a vacuum by means of water flowing through the second passage (116,116′,116″;216;316), so that water present in the interior (104;204;304) of the riser pipe (102;202;302) is discharged via the first passage (114,114′,114″;214;314) and thereby the riser pipe (102;202;302) is drained.