Floor cleaning machine with solid chemical delivery system

A floor cleaning machine comprising:

• a cleaning head configured for cleaning a floor surface;
• a solution tank configured as a reservoir for a cleaning solution;
• a pre-canister sensor configured to receive the cleaning solution from the solution tank and further configured to measure a concentration of any dissolved solids within the cleaning solution;
• a canister assembly configured to receive a first portion of the cleaning solution from the pre-canister sensor and further configured to dissolve portions of a solid chemical form into the first portion of the cleaning solution thereby forming blended droplets, the canister assembly having a spray nozzle positioned vertically above the solid chemical form;
• a post-canister sensor configured to receive a mixture of a second portion of the cleaning solution from the pre-canister sensor and the blended droplets from the canister assembly, the post-canister sensor configured to measure the concentration of any dissolved solids within the mixture of the second portion of the cleaning solution from the pre-canister sensor and the blended droplets from the canister assembly;
• and
• a controller configured to receive the measurement of the concentration of any dissolved solids within the cleaning solution from the pre-canister sensor and further configured to receive the post-canister measurement of the concentration of any dissolved solids within the mixture of the second portion of the cleaning solution from the pre-canister sensor and the blended droplets from the canister assembly from the post-canister sensor, and wherein the controller is configured to provide notification if a difference in the measurements is outside of a predefined range.