Patent ID: 7993527

Claim:
A recreational water circulation system for controlling water characteristics comprising: a container for holding a body of recreational water; a circulation line connected to said container; a pump, said pump circulating water to and from the container through said circulation line; a dispenser in fluid communication with the body of recreational water, said dispenser containing a dispensable material including an ion yielding material for changing a water characteristic of the body of recreational water; a chlorine generator for releasing chlorine into the body of recreational water for changing the water characteristic of the body of recreational water; a plurality of sensors located in either said circulation line or said container for on-the-go measuring the water characteristic of the body of water upstream of the chlorine generator wherein a volume of water flowing past the sensors remains constant while a volume of water flowing past the dispenser changes in response to a measurement from said sensors; and a control station responsive to the measured water characteristic from said sensor with said control system directing more or less water through the dispenser while generating chlorine in the circulation line to thereby maintain the chlorine in the container within a suitable range by increasing or decreasing an amount of dispensable material while controlling the generation of chlorine in the water in the circulation line.