DryStop AODD pump controller automatically shuts off pumps when they run dry

The DryStop AODD (Air Operated Double Diaphragm) pump controller automatically shuts off pumps when they run dry. Unlike a level sensor, DryStop does not monitor the liquid level, but instead listens to the pump through its air inlet like a stethoscope. When the pump speeds up indicating that all available liquid is gone, DryStop shuts the pump down.

The DryStop controller has a Manual-Only and Automatic Restart mode. The Automatic Restart mode can be used to periodically turn the pump on to check for fluid, and is typically used in sump applications where fluid sporadically fills the sump. In the Manual-Only mode, DryStop will not restart the pump until a worker presses a restart button. This mode is typically used to transfer fluid from one container to a new location.

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