How to do system cleaning, irrigation, water supply and ball passing test?

Cleaning means introducing clean water until the color of the water at the outlet is the same as that at the inlet.

Irrigation is to seal the exit, fill a pipe and check it.

Peeing is peeing.

Passing the ball is to take a ball with a diameter of three-quarters of the pipe diameter and come out without obstacles. This is the job of the inspection supervisor.