Filling water containers (Hosidius kitchen)

⚠ This profit comes from buying, processing, and reselling on the Grand Exchange. It assumes large GE volume and can be inflated or volatile — treat it as a theoretical ceiling.

The Hosidius Kitchen (located east of the Mess) contains a water source right next to a bank chest, allowing instant banking. With enough attention, you can fill and deposit 3 inventories of containers every minute, resulting in 5,040 conta…