The Kärcher SP 22,000 Clean & Dirty Water Pump is an extremely powerful submersible pump is ideal for draining large garden ponds, flooded basements or construction pits. The Dirt Level Sensor starts immediately upon contact with water and is individually adjustable to suit your needs. Save time by conveniently changing the automatic/ manual switch to continuous operation. This pump can reliably pump water down to a residual water level of 35 millimetres – both in continuous operation and in automatic mode, when the level sensor is set accordingly.