Weekly floater pool sanitizer

Abstract

A composition for the treatment of a liquid, particularly a body of water, such as a swimming pool, spa, or the like. The composition includes calcium hypochlorite, a water soluble zinc salt for controlling algae, and sodium aluminate as an agglomerating agent that may safely be combined with said calcium hypochlorite and said zinc salt. A floating chemical dispenser for containing and dispensing chemicals to treat a body of water. The dispenser includes an upper end float, a container adapted to contain chemicals, the container removably joined with the upper end float, and a free end float joined with the container. The free end float is configured so that a central axis of the container and upper end float is not substantially orthogonal to a surface of the water.

1 . A composition for the treatment of a liquid, comprising:
 calcium hypochlorite;   a water soluble zinc salt for controlling algae; and   an agglomerating agent, wherein said agglomerating agent may safely be combined with said calcium hypochlorite and said zinc salt.   
   
   
       2 . A composition according to  claim 1 , wherein said calcium hypochlorite is an anhydrous calcium hypochlorite containing at least about 65 percent by weight of Ca(OCl) 2 . 
   
   
       3 . A composition according to  claim 1 , wherein said calcium hypochlorite is a hydrated calcium hypochlorite containing at least about 55 percent by weight of Ca(OCl) 2  having a water content of from about 4 to about 15 percent. 
   
   
       4 . A composition according to  claim 1 , wherein said calcium hypochlorite comprises from about 40 percent to about 99 percent by weight of the combined weight of said calcium hypochlorite and said water soluble zinc salt. 
   
   
       5 . A composition according to  claim 1 , wherein said calcium hypochlorite comprises from about 60 percent to about 97 percent by weight of the combined weight of said calcium hypochlorite and said water soluble zinc salt. 
   
   
       6 . A composition according to  claim 1 , wherein said calcium hypochlorite comprises from about 50 percent to about 95 percent by weight of the combined weight of said calcium hypochlorite and said water soluble zinc salt. 
   
   
       7 . A composition according to  claim 1 , wherein said water soluble zinc salt is an inorganic salt. 
   
   
       8 . A composition according to  claim 7 , wherein said water soluble zinc salt is one of zinc borate, zinc bromate, zinc chlorate, zinc fluoride, zinc iodate, zinc nitrate, and zinc sulfate and hydrates thereof. 
   
   
       9 . A composition according to  claim 1 , wherein said water soluble zinc salt is an organic salt. 
   
   
       10 . A composition according to  claim 9 , wherein said water soluble zinc salt is a monocarboxylic acids containing from about 1 to about 4 carbon atoms. 
   
   
       11 . A composition according to  claim 10 , wherein said water soluble zinc salt is one of zinc formate, zinc acetate, and zinc proprionate. 
   
   
       12 . A composition according to  claim 9 , wherein said water soluble zinc salt is a salt of a polycarboxylic acid. 
   
   
       13 . A composition according to  claim 12 , wherein said water soluble zinc salt is one of zinc citrate, zinc gluconate, and zinc tartrate. 
   
   
       14 . A composition according to  claim 1 , wherein said water soluble zinc salt is present in a concentration sufficient to provide the liquid with a concentration of zinc in the range of from about 0.2 to about 10 parts per million. 
   
   
       15 . A composition according to  claim 1 , wherein said water soluble zinc salt is present in a concentration sufficient to provide the liquid with a concentration of zinc in the range of from about 1 to about 8 parts per million 
   
   
       16 . A composition according to  claim 1 , wherein said water soluble zinc salt is present in a concentration sufficient to provide the liquid with a concentration of zinc in the range of from about 2 to about 6 parts per million. 
   
   
       17 . A composition according to  claim 1 , wherein said water soluble zinc salt is one of zinc sulfate and hydrates thereof. 
   
   
       18 . A composition according to  claim 1 , wherein said agglomerating agent is sodium aluminate. 
   
   
       19 . A composition according to  claim 18 , wherein said sodium aluminate is applied to achieve a dosage rate between about 0.01 to 10 parts per million of the liquid. 
   
   
       20 . A composition according to  claim 1 , wherein the composition is in granular form.