Update, I figured what's not working, now all I have to do is figure how to fix it. The charcol filter is working okay but I am going to recharge it this week. The chlorine injector is the problem even though it's working and injects chlorine it's not pumping against pressure for some reason and the chlorine is running down the outside of the feed line. It has done this off and on for two years but always injected chlorine into the water correctly until about a month ago. I chlorinated the cistern and almost right away the chlorine levels came up. PH even went down some. The so called vendor who installed this to start with plumbed everyting too short and used the wrong fitting so I'll need to cut everyhting apart and start over. Anyway when the chlorine came up I loaded all the house lines with chlorinated water to kill whatever might be in the lines then turned the filter back on and so far no smell. We'll see how long this lasts. More later, ric