Patent ID: 7780910

Claim:
A method of disinfection comprising: placing a cartridge in a well defined by a base through an opening in the well, the cartridge having a side wall and upper and lower ends which selectively hold within the cartridge a disinfectant concentrate or reagents which react in a liquid to form a disinfectant solution; closing the opening in the well with a lid; supplying the liquid to the well; flowing the liquid into the cartridge through the upper end such that the liquid mixes with the concentrate or reagents to form the disinfectant solution; flowing the disinfectant solution out of the cartridge into the well through the lower end of the cartridge; flowing the disinfectant solution through a space between the cartridge side wall and the well to disinfect the well; flowing the disinfectant solution out of the well through bores in the base adjacent an upper end of the well; and contacting items to be disinfected with the disinfectant solution.