The Venting System consists of grated plates on the upper portion of the enclosed bucket which is then covered with rubber flaps. It also includes an open center design. The main purpose of the Venting System is to reduce the spread of contaminants, decrease time per bucket cycle, and cut costs related to unneccesary water treatment.
Every Cable Arm clamshell is equipped with a passive venting system.
This venting system serves 3 purposes:
This venting system serves 3 purposes:
Open While Lowering
While the bucket is being lowered, the vents open - allowing water to flow through. This reduces downward water pressure
and helps to minimize resuspension.
Closed When Raising
When the bucket is raised, the vents close - reducing the possibility of water washing material out of the bucket.
Drain Excess Water
Once the bucket reaches the surface, excess water is drained through the vents, avoiding excess dewatering costs.