Chemical dispensing systems

A chemical dispensing system for dispensing a dissolving chemical into a surrounding body of water, comprising:

• a buoyant float;
• a chemical containing and dispensing body having a buoyancy and coupled to the float, the buoyancy of the body permitting the body to buoyantly displace relative to the float between a first position toward the float and a second position away from the float;
• the body holding a dissolving chemical;
• the float to hold the body holding the dissolving chemical in the body of water;
• the buoyancy of the body causing the body to buoyantly displace between the first and second positions thereof relative to the float in response to a depletion of the dissolving chemical into the body of water from the body;
• and
• an indicator carried by the body, the indicator concealed by the float in the first position of the body, and exposed relative to the float in the second position of the body.