When pumping liquid neat polyelectrolyte, it is important to consider the viscosity and flow characteristics of the solution. The viscosity of polyelectrolyte solutions can be very high, especially at high concentrations, which can make pumping challenging.

One way to increase the pumping speed of liquid neat polyelectrolyte is to use a pump system that is specifically designed to handle high viscosity fluids, such as a positive displacement pump. Positive displacement pumps are able to deliver a constant flow rate, regardless of the viscosity of the fluid, which can be useful when pumping high-viscosity polyelectrolyte solutions.

Another option is to dilute the polyelectrolyte solution to a lower concentration before pumping. This can help to reduce the viscosity and make the solution easier to pump. However, it is important to consider the impact of dilution on the performance of the polyelectrolyte and ensure that the desired properties are maintained.

It is also important to consider the impact of pumping on the stability of the polyelectrolyte. Shear forces generated during pumping can cause degradation of the polyelectrolyte, which can affect its performance. To minimize this, it is important to select a pump system that is designed to handle shear-sensitive fluids and to operate the pump at a suitable flow rate and pressure.

In summary, to achieve fast pumping of liquid neat polyelectrolyte, it is important to select a pump system that is designed to handle high viscosity fluids, consider dilution if necessary, and operate the pump at suitable conditions to minimize shear forces and ensure the stability of the polyelectrolyte.