Every Sewage Treatment plant uses a minimum of 6 pumps. Sewage Feed Pumps, Sludge Pumps and Filter Feed Pumps. Each pump is different and can not be interchanged. Mostly 3 working and 3 standby. STP will stop functioning if any of these pumps fail. More than 60% pump failures can be prevented if we select the right pump.
— February 2018