What can happen if an applicator leaves chemical in their tank without cleaning it?

Leaving chemical in a tank without properly cleaning it can indeed lead to tarnishing or deterioration of the tank. Over time, chemicals can react with the materials of the tank, especially if they are corrosive or reactive. This can cause rust, corrosion, or damage to the tank's interior surface, making it less effective and potentially leading to costly repairs or replacements. Additionally, residual chemicals can also lead to contamination of future applications, affecting the effectiveness of new chemicals and posing safety risks. Therefore, regular cleaning and maintenance of the tank are essential to ensure its longevity and functionality.