An individually adjustable level sensor immediately activates the SP 22,000 Dirt Level Sensor wastewater pump upon contact with water. If the water level falls below the level sensor, the pump automatically stops after 15 seconds. This extremely powerful submersible pump is ideal for draining large garden ponds, flooded basements, or inundated construction sites, as it can reliably pump heavily contaminated water (with dirt particles up to 30 mm in size) at a rate of up to 22,000 liters per hour. For even more contaminated water, the integrated and retractable stainless steel pre-filter protects against clogging. The pump can also be switched to continuous operation using the automatic-manual switch. It reliably pumps down to a residual water height of 35 millimeters, both in continuous operation and in automatic mode, depending on the level sensor's settings. With the quick connect coupling, hoses of 1", 1 1/4", and 1 1/2" can be easily and quickly connected. Thanks to its stainless steel housing and robust mechanical seal, the pump has an exceptionally long lifespan. An optional warranty extension to 5 years is available.