Multi-step systems will increase the level of complexity of the spray system compared to a standard spray system. They can also introduce a new range of things for the operator to consider, such as additional maintenance, additional system checks and additional decontamination. The spray operator should have a clear understanding of why they may need such a system before purchase.

For many farming enterprises, where a large variation in spraying speeds and application volumes is common, the time saved by operating with a well set up multi-step system will outweigh the additional planning and maintenance the system is likely to require.

The initial planning and nozzle selection are the most critical aspects of operating a multi-step nozzle system effectively and efficiently.

Many multi-step spraying systems are capable of achieving very low spraying speeds (improving deposition and reducing overdosing). This feature, combined with single nozzle section control, can often save more than 5 per cent of the total chemical usage on many farms.