designed on the basis of berboulli theory,fluid under pressure is pumped into the nozzle through its

large flow opening , as the liquid exits the nozzle at high velocity,it draws surrounding solution through

the nozzles flow-through chamber that's designed to eliminate internal material build-up,the additional

liquid flow mixes with pumped solution,that is,the nozzle can pull in 4gallons of surrounding solution

for every 1gallon pumped through the nozzle