Brief underwater ambience
Sea waves lapping heavily at close perspective
Water sprinkler turning on, sprinkling lawn and turning off
The sound of a human peeing.
Ext - Water from hose washing down plastic furniture. Good forceful spray sounds on plastic
Open and close water faucet
Flushing aeroplane toilet
Drain plunger plunging lavatory/toilet pan with water splashing
Sink tap turning up the pressure until it sprays and turned off.
A Rover driving on gravel and water, constant onboard