I'd like to start a discussion about sanitizer decay rates. I'm getting 1.5pp. Per 24 hours. What are your numbers? Note that my spa has an ozone generator so my decay rate should be worse than normal .
My observation is that measuring decay rate as a percentage isn't very useful because the actual decay rate is highly linear, at least in my findings. In fact, I find it useless. I have attached my decay curve , which is taken from a covered spa , just purged with ahhsome (after 1 week to stabilize)
When I figure out how to attach an image You will see that the decay as a percentage depends on the nominal chlorine level , and that the more useful number is ppm per 24 hours. At 4ppm my decay rate is about 37% but at 1.6 ppm nominal chlorine my decay rate is 100 %. So I no longer care about decay rate as a percentage unless the nominal ppm level is specified. I care about it ecpressed as ppm per 24 hours
I expect those without ozone should get measurably better results than this. Otherwise , something is chowing down on your free chlorine!
(Fyi x axis is hours )
My observation is that measuring decay rate as a percentage isn't very useful because the actual decay rate is highly linear, at least in my findings. In fact, I find it useless. I have attached my decay curve , which is taken from a covered spa , just purged with ahhsome (after 1 week to stabilize)
When I figure out how to attach an image You will see that the decay as a percentage depends on the nominal chlorine level , and that the more useful number is ppm per 24 hours. At 4ppm my decay rate is about 37% but at 1.6 ppm nominal chlorine my decay rate is 100 %. So I no longer care about decay rate as a percentage unless the nominal ppm level is specified. I care about it ecpressed as ppm per 24 hours
I expect those without ozone should get measurably better results than this. Otherwise , something is chowing down on your free chlorine!
(Fyi x axis is hours )