Are sight gauges allowed on pesticide and fertilizer tanks?

Sight gauges are not permitted on pesticide tanks due to safety and environmental concerns. The potential for spills or leaks poses significant risks, making it imperative to use safer methods for monitoring the contents of pesticide tanks. However, sight gauges are allowed on fertilizer tanks, but with specific precautions. These gauges must be locked to minimize the risk of accidental contamination or unauthorized access, ensuring that the tank's contents can be monitored safely while maintaining control over its use. This distinction reflects the regulatory framework aimed at protecting both people and the environment from the hazardous effects of pesticides.