What happens to the flow rate with less durable nozzles?

When using less durable nozzles, it is expected that the flow rate increases due to factors such as wear and tear over time. As nozzles wear out, the orifice openings can become larger, leading to an increase in flow rate. This is particularly true if the nozzle is made from materials that degrade under the conditions of use.

The increase in flow rate can be in the range stated in the correct choice, where the flow rate can rise by approximately 10-15%. This increase poses risks such as uneven application of fertilizer, which can lead to environmental issues and reduced agricultural effectiveness. It’s essential for fertilizer applicators to monitor nozzle condition regularly to ensure optimal flow rates and application uniformity.

Other scenarios, such as a decrease in flow rate or a stable flow rate, would not align with the typical behaviors observed with worn nozzles, and the suggested doubling of flow is an exaggerated prediction that does not generally occur with standard wear rates. Understanding the relationship between nozzle durability and flow rate is crucial for effective fertilizer application management.