What is the proper method to fill a spray tank?

Filling a spray tank by first adding water to a level between half and three-quarters full before introducing any pesticides is the proper method because it ensures better mixing and reduces the risk of creating clumps or residues that can affect the efficacy of the pesticide. When the tank is filled with water initially, it allows for better agitation and mixing of the pesticide as it is added. This method helps to ensure that the active ingredients are evenly dispersed throughout the water, which is crucial for achieving a consistent application and effective pest control.

Furthermore, starting with water reduces the chances of damaging the tank or the equipment. If pesticides were added first in a mostly empty tank, they could settle at the bottom or stick to the sides, leading to incomplete mixing and potential chemical reactions that could compromise the integrity of the mixture. This method also helps in ensuring more accurate measurements of the pesticides being added since it allows for easier control of the total volume in the tank.

Using hot water, filling only with pesticides, or filling the tank to the brim are approaches that do not promote effective mixing and could lead to problems during application, such as uneven distribution or ineffective pest control.