Split stream oilfield pumping systems

A system for pumping an oilfield fluid from a well surface to a wellbore, said system comprising, at the well surface:

• a clean stream comprising primarily water;
• a dirty stream comprising a corrosive material, a gelling agent, and water;
• a common manifold that is connected to the clean stream and the dirty stream, said common manifold combining the clean stream and the dirty stream to form the oilfield fluid;
• a water tank at the well surface for supplying water to the dirty stream;
• and
• a gel maker at the well surface that receives the water from the water tank and mixes the water and the gelling agent.