What is most likely to happen to the output from a spray system when polymer is added to the spray solution?

When a polymer is added to a spray solution, it generally increases the viscosity of the solution. This increase in viscosity can cause a number of changes in the dynamics of the spray output. Higher viscosity typically leads to reduced flow rates, meaning that the liquid moves more slowly through the system's components, such as hoses and nozzles. As a result, the amount of spray produced may decrease when the polymer is added.

In addition to the reduced flow rate, the alteration in the physical properties of the solution can also lead to changes in the droplet formation during spraying. This can cause larger droplets or a less uniform spray pattern, which further contributes to a decrease in effective coverage. Overall, the addition of polymers tends to create a more viscous, less flowable solution, which naturally leads to a decrease in the output of the spray system.