Nozzles can be used at various heights within the recommended range. However, this will affect the spray pattern width and the gallons per acre (GPA) applied.
Multi-Pass Spraying
When multi-pass spraying, be sure to overlap the ends of spray patterns 12 – 16 inches to ensure even coverage.
Adverse Wind Conditions
With boomless spray nozzles, as with other spraying methods, high or gusty wind conditions can cause drifting or pattern movements, adversely affecting spray coverage. If this occurs, wait for more favorable conditions before continuing.
Plumbing Requirements
Make sure that all plumbing and feed lines can properly supply the nozzle or nozzles at their rated GPM and PSI. The type of pump used and the length of the discharge hose will affect the volume and pressure delivered to the nozzle or nozzles.
Minimum hose size requirements are
1 – 1/4″ MNPT Nozzle………….1/2″ ID Hose 1 – 1/2″ MNPT Nozzle………….3/4″ ID Hose 1 – 1″ MNPT Nozzle……………..1-1/4″ ID Hose
2 – 1/4″ MNPT Nozzles………….5/8″ ID Hose 2 – 1/2″ MNPT Nozzles………….1″ ID Hose 2 – 1″ MNPT Nozzles……………..1-1/2″ ID Hose
Nozzle Mounting Center Distance
To insure proper kickback overlap between the two nozzles and spray distance outward when mounting a pair of regular pattern nozzles together these are the recommended nozzle center distances.
2 – 1/4” Nozzles …………………3” – 4” Center Distance 2 – 1/2” Nozzles………………….6” – 7” Center Distance 2 – 1” Nozzles……………………..8” – 9” Center Distance
Nozzle Combinations for Roadside and Right-of-Way Spraying
Speed 2 to 12 MPH
Nozzle Combination 1 – 1255 Right 1 – 1871 Right 1 – 2650RS
Speed 5 to 15 MPH
Nozzle Combination 1 – 1876 Right 1 – 2651 Right 1 – 3750RS
Nozzle Combinations for Roadside and Right-of-Way Spraying
For roadside and right-of-way spraying at these speeds, nozzles with patterns of 6 feet or less should be mounted 12” – 24” above the ground. Larger patterns should be mounted 18” – 48” above the ground.