river in Hubei province
漊 is a rare kanji that refers to a specific river in Hubei province. Its standalone meaning is limited to this geographic name.
漊 combines the water radical 氵 with the phonetic component 婁. It was likely created as a specific river name, with 氵 indicating water and 婁 providing the sound.
The water radical 氵 on the left suggests a river. The right side 婁 looks like a complex structure, but together they point to a specific river in Hubei. Imagine the 氵 flowing beside the character 婁 as a signpost marking that river.
For ル, imagine the river's name starting with a soft 'ru' sound, like the beginning of 'rue' (a street, but here a waterway). Picture a sign that says 'Ru River' with 漊 written beneath it: Ru -> ル.