Spray Bottle Not Pumping

The manual spray bottle is a ubiquitous pneumatic device utilized in domestic, industrial, and agricultural contexts for the dispersion of liquids. Despite the simplicity of its design—a single-acting reciprocating pump—users frequently encounter operational failures characterized by a lack of pressure generation or liquid discharge. This paper provides a technical analysis of the "spray bottle not pumping" phenomenon, identifying the primary failure modes within the hydraulic and pneumatic subsystems. Specific attention is paid to seal integrity, valve occlusion, and prime loss. Standardized troubleshooting protocols and remediation techniques are proposed to restore functionality.