An underground sprinkler system including a tank having an inner cavity adapted to hold chemicals, a distribution pipe fluidly connected to the inner cavity of the tank allowing chemicals to be added to the tank; a mixer connector pipe fluidly connected to the inner cavity of the tank and to a water source hose; a pump disposed in the tank for pumping the chemicals out of the inner cavity of the tank and into the water source hose via the mixer connector pipe; and a secondary connector pipe fluidly connected to the inner cavity of the tank and to the water source hose, the secondary connector pipe allows water from the water source hose to enter into the inner cavity of the tank.