Self-cleaning sump
April 1st 2007

The Hidrostal self-cleaning sump system combines a Hidrostal screw centrifugal impeller pump with a special basin arrangement to make the sump self cleaning.

With the special sump geometry installed, the pump behaves exactly like a normal submersible pump until the sump level approaches stop level. At this point, the sump geometry introduces a strong rotating flow which entrains all floating materials, including oils and greases, and pumps them into discharge system.

Because there is no build up of solids or fats in the sump, the pump does not block and is always kept clean.

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