地面灌溉

地 = 也 + 土 : Dorothy Gale (di) hates the cleanliness of the space station, so she used an excavator (也) in the space station's bathroom (Ø4) to dig a pile of dirt (土) out of the ground (地) for a mud bath.

面 = 丆 + 囬 : Mnemonic symbol: a spray flask with one of these liquids which make a surface super slippery.

In the anthill's bathroom (an4), Marilyn Monroe (mi) wants to set up a wind wheel (丆) on top of a closet (囬). Just as she tries to fix it she slips and falls down, the wind wheel crashing on the floor. She didn't notice that somebody used a can of non-stick coating (面) on the closet's surfaces (面).

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).