Abstract: A water driven cleaning apparatus for use in spas, hot tubs and like open-topped enclosures suitable for bathing and having a pressurized water system. This fast, efficient, easy-to-use cleaning system extends the pressurized water system to create vacuum pressure used to remove sand, gravel, leaves, needles and other unwanted foreign matter collected in the vessel. An in-line filter traps these particles and permits removal before they enter the primary filtration system. This apparatus can be used by the bather from inside or outside the vessel. The vessel may be located indoors or outdoors. The apparatus operates without modifying the spa, hot tub or like open-topped enclosure.