The rate controller can only function as well as the components, the plumbing and the settings allow.

Rate controllers will struggle to achieve or maintain the desired application rate if the plumbing is not correct, the valve types are not appropriate, or the regulation is not correctly set-up or adjusted correctly. Issues may also arise if the pump capacity is too small, there are plumbing restrictions or the oil flow to the pump is restricted.

Where the rate controller is not able to achieve or maintain the application rate you require (e.g. higher application volumes and higher spraying speeds) you should complete the checks listed in the pre-operational checks module (Module 6), and ensure that the plumbing is appropriate for the system and pump.

Find out more

For more information on plumbing and plumbing components, go to Module 11: Pumps, plumbing and components