What should an applicator do if the sprayer has little or no liquid discharging once the valve is opened?

When facing a situation where the sprayer has little or no liquid discharging after the valve is opened, the appropriate action is to remove and clean the nozzle, orifice, or strainer.

This choice is correct because blockages in the nozzle or strainer are common issues that can prevent liquid from flowing properly. Over time, residue, debris, or crystallized materials can accumulate and obstruct the flow. By cleaning these components, the applicator can restore proper function to the sprayer, ensuring that it operates effectively and delivers the necessary application without requiring additional equipment.

While other actions might seem reasonable under certain circumstances, they do not directly address the immediate problem of blockage. Replacing the sprayer could be an unnecessary expense if the issue can be resolved with cleaning. Increasing the pressure might not solve the issue and could damage the sprayer or affect the application rate. Changing the liquid used may also not be helpful if the problem stems from a mechanical blockage rather than the liquid itself.