Powerful submersible pumps for draining and emptying, for use in domestic and residential applications. The use of corrosion and oxidation resistant materials makes them suitable for pumping dirty water. Motor with thermal overheating protection. Wear-resistant motor shaft and impeller. Very efficient motor cooling, allowing the pump to also be used only partially submerged. Automatic version with float switch for automatic pump start and stop, or manual version. Fitted with power input cable with plug, 3-level connector. Check valve to be purchased separately.