Patent ID: 7828942

Claim:
A device for producing a biocidal solution including: a support frame; a sealed and replaceable reservoir having a low volume capacity, adapted to be mounted to the support frame and containing a pre-prepared aqueous salt solution having a pre-determined concentration; means for breaking the seal of the reservoir when the reservoir is mounted to the support frame; an electrolytic cell for electrochemically treating the aqueous salt solution, that is mounted to the support frame, that is connectible to the reservoir, and that has an anode chamber for delivering a biocidal solution from the electrolytic cell, and a cathode chamber, said anode and cathode chambers being separated by a separator; a pump, mounted to the support frame and in communication with the reservoir when the reservoir is mounted to the support frame, for delivering a split flow of accurately measured volumes of the aqueous salt solution from the reservoir to the anode and the cathode chambers of the electrolytic cell to control the flow rate of the aqueous salt solution to the electrolytic cell, the flow to the anode chamber comprising about 95-97% by volume of the aqueous salt solution and the flow to the cathode chamber comprising about 3-5% by volume of the aqueous salt solution, said pump being in communication with the reservoir through a main feed line made from a flexible and resilient material and to the anode and cathode chambers by an anode feed line and a cathode feed line respectively; a restrictor valve incorporated in the cathode feed line for controlling further the flow rate of the aqueous salt solution to the cathode chamber; dispensing means for receiving the biocidal solution from an anode chamber outlet; a waste reservoir for receiving an output from the cathode chamber outlet, said output in its entirety to be discarded; an electrical circuit for connecting the pump and the electrolytic cell to a mains supply source; a power pack included in the electrical circuit between the electrolytic cell and the mains supply source to provide a substantially constant direct current of 7 to 12 amps to the electrolytic cell; and an operator-controlled switch included in the electrical circuit for completing the electrical circuit when the switch is operated; whereby operation of the switch energises the pump to deliver the flow of aqueous salt solution and the electrolytic cell to produce the biocidal solution having a predetermined level of available free chlorine and pH.