Abstract: An apparatus is provided for mixing granular fertilizer and/or a liquid insecticide or other treatment liquid in water in an upstanding tank having an opening for its water supply which is piped to the tank above a porous strainer to an area in the upstanding tank below the porous strainer and to a pipe whose function is to provide a pressurized flow of water to the tank for cleaning purposes. The bottom of the tank has an outlet for dispensing the mixture into an irrigation piping system or a sprayer attachment. The apparatus has a motor-driven vertical shaft with upper and lower blades inside the tank. A screen with a funnel-shaped wide upper end and a smaller cylindrical lower end extends around the shaft from a location near the upper end of the tank down to a point perpendicular to the horizontal plane of the bottom of the inner tank. A porous strainer extends across the top of the tank above the wide funnel mouth of the screen.

Abstract: The present mixing apparatus has a tank for holding water, a hopper at the top for passing granular fertilizer down into the tank, a strainer below this hopper and above a mixing chamber in the tank, a reservoir for liquid insecticide or the like at the top of the tank, a manual valve between this liquid reservoir and the mixing chamber in the tank, a motor-driven rotary shaft carrying upper and lower mixing blades inside the mixing chamber in the tank, and a discharge outlet at the bottom of the tank. The motor is mounted at the top of the tank. An upper sealed bearing for the motor-driven shaft is located in the strainer and a lower sealed bearing for the shaft is located near the bottom of the tank. Inside the tank the mixing chamber is defined by a generally funnel-shaped screen of fine enough porosity to retain the granular fertilizer on the inside of the screen. A spray pipe extends across the inside of the screen near its upper end and down across the outside of the screen at one side.