A system, comprising: a first container to store a solution of spores; a second container to store a solution of nutrients; a water source; a syringe pump comprising a tank, the tank being configured to receive a volume of the solution of spores, a volume of the solution of nutrients, and a volume of water; a heater to heat a mixture of the solution of spores, the volume of the solution of nutrients, and the volume of water in the tank; an adjustable valve configured to controllably open and close a first channel from the tank to the first container, a second channel from the tank to the second container, and a third channel from the tank to the water source; a controller configured to control a sequence of operations among the adjustable valve and the syringe pump to form and activate a dosage of the mixture, the syringe pump being configured to draw the volume of the solution of spores, the volume of the solution of nutrients, and the volume of water from the adjustable valve and into the tank, the syringe pump being configured to expel the mixture from the tank to the adjustable valve; the system being characterized in that it further comprises a flow meter configured to provide a measurement of water consumption in a water distribution system, and wherein the controller is further configured to at least: receive the measurement of water consumption from the flow meter; and initiate a respective dosage of the mixture based at least in part on the measurement of water consumption, wherein the respective dosage of the mixture is provided to the water distribution system. a first container to store a solution of spores; a second container to store a solution of nutrients; a water source; a syringe pump comprising a tank, the tank being configured to receive a volume of the solution of spores, a volume of the solution of nutrients, and a volume of water; a heater to heat a mixture of the solution of spores, the volume of the solution of nutrients, and the volume of water in the tank; an adjustable valve configured to controllably open and close a first channel from the tank to the first container, a second channel from the tank to the second container, and a third channel from the tank to the water source; a controller configured to control a sequence of operations among the adjustable valve and the syringe pump to form and activate a dosage of the mixture, the syringe pump being configured to draw the volume of the solution of spores, the volume of the solution of nutrients, and the volume of water from the adjustable valve and into the tank, the syringe pump being configured to expel the mixture from the tank to the adjustable valve; the system being characterized in that it further comprises a flow meter configured to provide a measurement of water consumption in a water distribution system, and wherein the controller is further configured to at least: receive the measurement of water consumption from the flow meter; and initiate a respective dosage of the mixture based at least in part on the measurement of water consumption, wherein the respective dosage of the mixture is provided to the water distribution system. receive the measurement of water consumption from the flow meter; and initiate a respective dosage of the mixture based at least in part on the measurement of water consumption, wherein the respective dosage of the mixture is provided to the water distribution system.