The Flow Indicator is an excellent diagnostic tool for chemical feed pumps.

Visual Indicators:

• Rhythmic rising and falling of the ball indicates positive flow.
• Air bubbles indicate chemical has exhausted.
• Stationary ball indicates no flow.

Possible problems could be:

• lost prime
• stopped motor
• plugged injection fitting
• faulty tube or diaphragm
• plugged or dirty footvalve filter
• chemical has been exhausted for a lengthy period of time

Blue-White recommends using:

• Glass bobbin for Chlorines and Acids
• Stainless Steel bobbin for Soaps and Waxes (high viscose fluids)