Cyclic Operation
Fluidizing Air Line
1. On a timed start, an air blower starts and injects a high velocity air stream into the Lower settling zone to fluidize the setted grit and break up any lumps.
2. A three way valve diverts the ait stream into a second line which feeds air into the bottom of the extraction pipe. The bubbles rise rapidly through buoyancy, inducing suction from the bottom and of the pipe.
The cycle pumping cycle continuse until it times out.
3. The cycle repeats every few hours, depending on the grit loading.