Patent ID: 8037711

Claim:
A portable dry ice holding container for cooling water contained in an existing swimming pool, said portable dry ice holding container comprising: a buoyant cartridge adapted for being removably positioned in the existing swimming pool, said buoyant cartridge including a first end and a second end oppositely spaced therefrom, said second end being closed and said first end being open, a lid removably connected directly to said first end of said buoyant cartridge such that a cavity is formed between said first and second ends of said buoyant cartridge, and a unitary outer surface extending between said first and second ends, said outer surface having a plurality of spaced apertures formed therein for permitting the swimming pool water to ingress and egress said cavity respectively; a handle penetrated through said outer surface of said buoyant cartridge and traversing said cavity such that opposed ends of said handle remain continuously situated exterior of said cavity for assisting a user to retrieve said buoyant cartridge without directly contacting said outer surface of said buoyant cartridge; and a predetermined volume of dry ice removably seated inside said buoyant cartridge such that said dry ice remains confined within said cavity; wherein said dry ice interacts with the swimming pool water inside said cavity and thereby lowers a temperature of the swimming pool water prior to egressing said buoyant cartridge wherein said handle includes means for agitating the swimming pool water inside said cavity by linearly reciprocating said handle relative to said container along a bi-directional linear path.