Yard and garden chemical dispenser

A chemical dispensing apparatus for use in delivery of a treatment solution to a lawn, the apparatus comprising:

• a main fluid supply passage configured for connection to a pipe system carrying water under pressure;
• a housing including first and second discharge ports;
• a fluid discharge passage;
• a discharge control valve connecting said fluid discharge passage to said first discharge port and said second discharge port, said discharge control valve operates to selectively permit the flow of fluid or preclude the flow of fluid from said fluid discharge passage to either said first discharge port or said second discharge port;
• an internal fluid supply passage connecting said main fluid supply and said fluid discharge passage;
• a supply control valve connecting said internal fluid supply passage and said main fluid supply passage, said supply control valve operates to selectively permit the flow of fluid or preclude the flow of fluid from said main supply passage to said internal fluid supply passage;
• and
• a liquid chemical dispenser configured to dispense a chemical into a flow of fluid through said internal fluid supply passage.