Step 1 of 6 - calibrating your knapsack sprayer for pesticide dose and spray mix/water volume

If your nozzle is damaged or worn then the spray pattern will be poor and either you may overdose your crop or you may under-dose and your pest will not be properly controlled.

So before fitting your nozzle check that it is in good condition.

This nozzle is damaged …

but this nozzle is fine.

When fitting the nozzle, the nozzle filter is fitted first into the nozzle body. These filters may have integrated seals. If not then ‘O’ ring seals will be supplied.

The nozzle cap

will hold the nozzle onto the nozzle body.