to irrigate / to pour / to install (software) / to record (music)
灌
=
氵
+
雚
:
Gitta Giraffe (gu) finds that the anthill's bathroom (an4) is infected with herons (雚), so she uses water bottles (氵) to pour (灌) water over them to make them fly away.
溉
=
既
+
氵
:
A team of four horses (既) is helping Guy Fawkes (g) to irrigate (溉) the airplane's bathroom (ai4) by pouring out a lot of water bottles (氵).