For the operators of one of Poland's largest fish farms, dredging the sludge filled channels of their sediment and organic substances was a constant nuisance - and cost. Sludge clearance at the Aquamar fish farm in the Polish town of Miastkowar swallowed up around 18,000 euros each year. Excavator hire was not the only worry as the effect of the operating the process during peak season was increasingly causing a strain.
To solve the problem, the farm's managing director, Andrzej Marczynski, purchased a Tsurumi GPN622 heavy-duty sand pump. The purpose-built pump, with a spiral-shaped housing has a maximum capacity of 5000 l/min and a 30 m head depending on the model. Hard wearing abrasent-reistent constuction materials and a powerful agitatior attached to the shaft mean that the pump is suitable for the toughest viscous media. Sales and service partner, BBA Pumps in Piaseczno, delivered the 415 kg unit within just a few days. The pump is operated hanging from a supporting A-frame which was produced internally. The structure was installed in the water collection area and a flexible hose drew mixture into nearby sedimentation tanks or pits. The pump is used only as required and after one year, the Aquamar farm had not only covered the procurement price of the pump, but also saved thousands of euros in costs.