Smartbot is an intelligent pump expert that makes people’s life easier and better by offering reliable and competent water removal products. This submersible sump pump, electric pump is suitable for basements, pools, swimming pools, yards, etc. It comes with knock over operation and dry run protection and pumps water 2.2X faster than other pumps. Marabout's patented auto-Flo sensing technology-automatic switch for monitoring water level: detects rising water levels and automatically pumps out water, when auto-Flo detects a water level of 2” , the water pump is immediately turned on. When water level drops to below the normal level, auto-Flo shuts down the pump. Smartbot can handle different types of water including clear water, rainwater, spring water, river water, lake water, etc (with up to 1/4" diameter solids). Smartbot 1/2-HP 120-Volt 70-GPM Thermoplastic Submersible Utility Pump | SUPER 4200 BLU