Patent ID: 8465651

Claim:
A sustainable method for treating and maintaining a body of water affected by bacteria and microalgae at low cost by filtering a small fraction of the total volume of the body of water, the method comprising: a. Collecting water with a concentration of total dissolved solids (TDS) of up to 50,000 ppm; b. Storing said water in at least one container, wherein said container has a bottom surface able to be thoroughly cleaned by a non-intrusive mobile suction means; c. Limiting the density of bathers up to 0.05 bathers per cubic meter in said water contained in said container; d. During a 7 day interval, treating said water in said container for a total oxidation reduction potential (ORP) treatment time during the interval by periodically adding disinfectant agents to said water to establish an ORP of about 500 mV, wherein said total ORP treatment during the interval is dependent on temperature of said water being treated and comprises a minimum period of about 1 hour for each degree Celsius (° C.) of water temperature up to a maximum temperature of 45° C.; e. Activating the following processes through a coordination means to purify said water and eliminate solids from said water by filtering only a small fraction of the total volume of said water in said container, wherein said coordination means receives information regarding water quality parameters controlled by said coordination means and activates processes i, ii, and iii to adjust said parameters within their limits: i. Suctioning a portion of said water containing settled solids with a mobile suction means to prevent the thickness of settled material from exceeding an average of 3 mm; ii. Filtering the portion of said water suctioned by the mobile suction means; and iii. Returning the filtered water to said container.