Microtube applicator system

Abstract From the Canadian patent

Liquid agrichemicals such as pesticides are applied to soil or crops in a continuous stream at low flow rate from microtubes without need for a mixing tank and without clogging of the microtubes during downtime, by a system mountable on a farm vehicle the, system comprising a liquid agrichemical supply tank a, water supply tank, a first conduit connecting the agrichemical supply tank to a manifold feeding the microtubes, a first pump in the conduit, water entrainment means (such as a venturi) and a second suction pump in, the conduit, a second conduit between the water supply tank and the venturi, and other conduits valves and, pressure regulators as appropriate to control the directions …