To pump away dirty water, you need a pump that can handle dirt particles with a large particle size. Like the Gardena Classic 7000 / D. This 300 watt waste water pump can handle wastewater with solids up to 25 millimeters. So that dirty ditch or muddy puddle has been emptied as well. The submersible pump has a float switch, which it automatically turns on and off. Thanks to the universal connection, the Classic Dirty Water Pump 7000 / D can be used in combination with 13 mm (1/2 ") -, 16 mm (5/8") -, 19 mm (3/4 ") -, 25 mm (1 ") and 32 mm (5/4") hoses.Note: not all substances may be pumped. Substances that you are not allowed to pump are: salt water, aggressive and highly flammable substances or foodstuffs. Look in the manual for more information about substances that can not be pumped with your specific pump.