Consist of a Rotary Slotted tube mounted on top of a tank. Floating scum gets collected into the slotted tube and it is discharged to drain.

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The Slotted Tube consists of 60° slot with reinforced gaps and rotates – as often as required - through manual handle or motorised arrangement.

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The Tube is supported on one side to a closed flange and other side to an open flange from where the scum is discharged.