We dona a job that called for the water lines to be chlorinated when we got done. I could not figure for the life of me how to do it, so after the inspection was done, I went and dis connected where the water came in at. Poured some bleach in the line and then went around and opened each tap a bit. Went back and blew air into the line untill the bleach could be smelled. We stopped, caped off the end, shut off the valves then waited 24 hours, then re connected to the city and flushed out the lines with clean water. How do you do it when you have to? Is there an easier way?