Drainage pumps

A drainage pump empties water from a basement, sump pit, well or pool. Models with a float switch work by themselves: they start when the water rises and stop when it is gone.

• For clean and slightly dirty water — particles up to 5–10 mm: snowmelt, groundwater, pools.
• For dirty water — particles of 25–35 mm: silt, sand, wastewater.

How to set up automatic basement pumping yourself is explained in “How to pump water out of a basement”.