Why is it crucial to release tank pressure after application?

Releasing tank pressure after application is crucial primarily to prevent spills and leaks. When a sprayer or tank is under pressure, any residual pesticide remaining inside can pose a significant risk of spillage when the tank is opened. If the pressure is not released properly, the contents can escape uncontrollably, leading to environmental contamination and potential harm to human health. By safely venting the pressure before opening, the operator can ensure that the tank is emptied without the risk of an abrupt release of its contents, thus promoting a safe and responsible application process. This practice is fundamental in adhering to safety regulations and protecting both the applicator and the environment.