Soil treatment applicator

A portable lightweight low pressure soil treatment applicator for a home, lawn or garden irrigation system with predefined areas of soil to be irrigated using a pressurized water supply and pressurized water for irrigation, wherein the portable lightweight low pressure soil treatment applicator comprising:

• a. a housing comprising:
• (i) a top with a chemical inlet port;
• (ii) a bottom opposite the top;
• (iii) a back between the top and the bottom;
• (iv) a first connected side mounted between the top and the bottom;
• (v) a second connected side mounted between the top and the bottom;
• (vi) a central cavity in the housing between the connected top, the bottom, the back, the first connected side and the second connected side;
• (vii) a water inlet port mounted through at least one of:
• the top, the bottom, the back, the first connected side, and the second connected side of the housing to flow pressurized water from the pressurized water supply to the central cavity;
• (viii) a diluted pressurized liquid soil treatment solution outlet port mounted through at least one of:
• the bottom, the back, the first connected side, and the second connected side of the housing to flow diluted pressurized liquid soil treatment solution to the pressurized water for irrigation;
• (ix) a closable door engaging the top, the bottom, the first connected side, and the second connected side of the housing, creating a weather resistant central cavity;
• and
• (x) an electrical input mounted through at least one of:
• the top, the bottom, the back, the first connected side, or the second connected side of the housing, the electrical input is adapted to receive power from a power supply external to the housing and the electrical input transfers power into the central cavity;
• b. a programmable logic circuit installed in the central cavity, comprising:
• (i) a relay for controlling power from the power supply;
• (ii) a processor;
• (iii) a data storage in communication with the processor;
• and
• (iv) computer instructions in the data storage for activating and deactivating the relay when pressurized water is detected at the water inlet port;
• c. a reservoir in the central cavity fluidly connected to the chemical inlet port for receiving a liquid soil treatment solution from a chemical source, the reservoir comprising:
• (i) a container for holding the liquid soil treatment solution;
• (ii) a container inlet for introducing the liquid soil treatment solution to the container;
• and
• (iii) a container outlet for flowing the liquid soil treatment solution from the container;
• d. a suction check valve fluidly connected to the container outlet;
• e. a low pressure chemical pump electrically connected to the programmable logic circuit and fluidly connected to the suction check valve, the low pressure chemical pump increases pressure of the liquid soil treatment solution to form a pressurized liquid soil treatment solution, wherein the pressurized liquid soil treatment solution has a pressure which is at least 10 percent greater than the pressure of the pressurized water supply;
• f. a mixing chamber for receiving the pressurized liquid soil treatment solution from the low pressure chemical pump, and for mixing with pressurized water from the water inlet port until the pressurized liquid soil treatment solution is diluted to a preset ratio forming the diluted pressurized liquid soil treatment solution;
• and
• g. a discharge check valve between the mixing chamber and the low pressure chemical pump for directionally controlling flow of the pressurized liquid soil treatment solution to the mixing chamber and preventing pressurized water from moving into the low pressure chemical pump;
• and
• wherein the mixing chamber passes the diluted pressurized liquid soil treatment solution at a pressure at least 10 percent greater than the pressure of the pressurized water supply into the pressurized water for irrigation.