Tube settler design involves the use of multiple tubular channels sloping at an angle of 60 degrees and adjacent to each other. This helps in increasing the settling area effectively. Tube settler design reduces the depth significantly compared to the conventional clarifier. This helps in reduction of settling time.

ADVANTAGES OF TUBE SETTLERS
They can be applied to new or existing clarifiers of any size
Tube settler clarifier increases the rate of operation by 2 to 4 times the normal rate of a conventional clarifier
They are available in varying sizes and shapes for fitting in different tanks
They are of lightweight because of the material used in manufacturing.
Tube settlers enable cutting of coagulant dosage and they maintain lower influent turbidity in the treatment of plant filters.
Saving of operating costs in water and electricity because of less filter backwash.
New installations can be made smaller because of the increased flow capability.
Tube settlers increase flow capacity through the expansion of settling capacity