Clarke39s isp14a submersible water pump is powered by a heavy duty 1460 watt electric motor has a massive 410 litres per minute maximum water flow rate and a float switch too this automatically turns the pump on or off as the water level rises and falls perfect for industrial use it drains not only clean water but brackish amp dirty water too and it39s even powerful enough to pump sewage water as well handling water containing solid bodies up to a maximum size of 50mm it also b