My chlorine injector stopped working a couple weeks ago and I had it fixed.
After three days of normal use by a family of 5, I tested the water coming out of the 120Gal treatment tank and it smelled like chlorine. Not ideal, but it means the sulphur is completely neutralized within the tank. I can adjust my injector pump to reduce the chlorine, and there is a carbon filter downstream that extracts the excess.
After that I ran water out of the shower and faucet furthest from the pump for 20 minutes. Then I ran water from a stationary tub fairly near the pump. It started to smell slightly better, but maybe my nose was getting used to it.
In any event, I am wondering why the water still smells so strong since I estimate I ran 200 gallons of water through the carbon, softener and pipes. After 2 weeks and paying the water company I am tired of answering the complaints! It never took this long in the past when I had to replace the duckbill valve or the systolic tube.