KanjiJLPT N3
Pipe

pipe, tube, wind instrument, drunken talk, control, jurisdiction

Mnemonic

A bureaucrat discovers a thick stalk of bamboo and hollows it into a pipe. He blows through it to summon his staff, channels water through it to irrigate fields — whoever controls the pipe controls everything.
Additional thoughts
Bamboo is naturally hollow, making it the perfect material for a pipe. A bureaucrat manages flow — of water, people, orders — just as a pipe directs flow. This fuses both the 'tube' and 'management' senses of the kanji.
Quick recall
A bureaucrat hollows out bamboo into a pipe to manage the flow of everything.

Details

The keyword for 管 is pipe. This kanji refers to a hollow cylindrical tube, originally evoking the image of a bamboo tube or reed used to channel air or liquids. By extension, it also carries the meaning of managing or being in charge of something, as one who controls the flow through a pipe effectively governs its direction. This dual sense of a physical conduit and administrative control makes the kanji common in words related to both tubing and management or jurisdiction.
On'yomi
かん
Kun'yomi
くだ