Anti-ice system and water play in the same device. The pump brings warmer deep water to the surface and maintains a small anti-ice zone. Harmful gases can thus escape and oxygen can enter the pond. The nozzle tip generates a remarkable water feature in the summer. The surface movement provides the necessary oxygen. Anti-ice zone around the float down to –20°C. Energy-efficient pumping technology without additional heating device (requires a depth of at least 80 cm).