Builder officially turned the pool over to us on Tuesday and turned on the inline chlorinator (CMD PowerClean) for the 1st time. They hadn't been using it during setup. Our chlorine level was at .3 so they cranked the chlorinator up pretty high, and then told us there was no need to do anything other than enjoy the pool until Saturday. With all the rain we've been having we hadn't even been out near the pool until Friday evening and by then the smell of Chlorine was overpowering. Tested the chlorine and it was at a whopping 9ppm. Turned the chlorinator off and started testing the chlorine daily. Dropped 3ppm down to 6ppm on Saturday, and is down to 4ppm today. So looks like we are losing 2-3ppm per day on nice hot sunny summer days.
I am not sure we will use the chlorinator long term, but at this point our CYA level is still pretty low (40) and we have a bucket of tablets so I'd at least like to get it setup and learn how to use so that when we go on vacation we can turn it on and not to have to worry about the chlorine too much while we are gone.
The chlorinator (CMD Power Clean) holds 5 tabs and has 5 graduations on it, but they aren't marked to give you any idea how much chlorine each graduation puts in the pool. I've looked online at the manufacturer's site and can't find guidance there either. Anyone have any experience with this kind of chlorinator and have a suggestion on where to start dial wise? It's also worth mentioning that we have a UV system that seems to do most of the work (the chlorine has been pretty much non-existant for the 6 weeks the builder took care of the pool (reading anywhere from 0 - to 0.5) yet it's been sparkling clean the entire time. Builder recommends running the chlorine on the low end of the scale - at 1 to 1.5ppm. We also have a VS pump and are running it 12 hours a day from 8am to 8pm.
Worst case figured we'd start with the first graduation and see where that takes us.