godan verb (-ru)
pour water on; irrigate
Used for deliberately pouring or sprinkling water onto something, such as plants, a garden, or a surface. Often implies a controlled action rather than accidental splashing.
庭の花に水がかかるようにホースを向けた。
I pointed the hose so that water would pour onto the garden flowers.
植木鉢にじょうろで水がかかる。
I pour water on the potted plant with a watering can.