What should be done if a diaphragm pump is not delivering the correct amount of chemical?

If a diaphragm pump is not delivering the correct amount of chemical, the most logical initial step is to check for blockages in the inlet. This is important because blockages can prevent the proper flow of the chemical into the pump, leading to inadequate delivery rates. Ensuring that the inlet is clear allows the pump to function properly and deliver the required amounts without any interruptions or limitations caused by obstructions.

This approach addresses the fundamental issue affecting the pump's performance. If blockages are present, they need to be resolved before considering other potential adjustments or changes, such as increasing pump speed, altering chemical concentration, or adjusting valve positions. Each of those adjustments could lead to complications or would not resolve the underlying issue if there is a blockage affecting the flow of chemicals into the system.