Sand and Slurry Submersible Pumps HS2.75S Manual
These are known as contractor pumps as they typically find themselves used with professional trades in difficult situations. They are built tough and perform well on common single-phase power supplies. Tsurumi pumps are a Japanese design and are known across the world for their performance.
This model has a spiral pump casing that allows sand and silt -laden water to pass through the pump. Additionally they have a shaft mounted agitator which prevents 'air lock' and also stirs the mixture helping the sediment to be removed.