Sure. Unhook the return line at the pump. Plug the port for the return line on the pump. Use a simple vacuum cap.
Then put the return hose from the box into a container and put a funnel in the pump. Have your buddy start the engine and turn the wheel back and forth as you feed the pump fluid through the funnel.Do this untill the fluid clears up.
Then re attach the return line to the pump and re fill system. Voila.
Fact is stranger than Fiction