For the last several days the weather was pretty consistent - 85 to 90 degrees and sunny skies. FC at the end of 8-hours SWG run would be around 5 - 5.5 ppm, in the morning 4.5 - 5 ppm, CYA 70, SWG output 60%. The overnight loss of FC <= 1 ppm.
I tried to adjust the output to reach 6 ppm. So I increased it from 60 to 65%. My pool didn't react in a noticeable way. The next day I bumped it up to 70%, and again - no noticeable response. For both settings there were about 3 chlorination cycles: 2 hours ON - 1 hour OFF /2 hours ON - 1 hour OFF / 2 hours ON.
Today I set the output to 75% and got a very different timing. The cell stayed in ON state, producing chlorine, for about 4 hours, then it switched to OFF for less than an hour, and again to ON for the remaining time (these are aproximate numbers). At the end of 8-hours day FC reached 6.5 ppm.
This is a very unintuitive behavior. I think the switching frequency is just too low, making it hard to predict and adjust FC production. I don't see any justification for that, the algorithm is executed by RJ60's microcontroller software and a much higher frequency could have been implemented.
Having said that, if the SWG turns out to be reliable, and the cell lasts a long time, I will still be happy with it. Especially after switching to a VS pump and going with longer daily runs instead of 8 hours.
I tried to adjust the output to reach 6 ppm. So I increased it from 60 to 65%. My pool didn't react in a noticeable way. The next day I bumped it up to 70%, and again - no noticeable response. For both settings there were about 3 chlorination cycles: 2 hours ON - 1 hour OFF /2 hours ON - 1 hour OFF / 2 hours ON.
Today I set the output to 75% and got a very different timing. The cell stayed in ON state, producing chlorine, for about 4 hours, then it switched to OFF for less than an hour, and again to ON for the remaining time (these are aproximate numbers). At the end of 8-hours day FC reached 6.5 ppm.
This is a very unintuitive behavior. I think the switching frequency is just too low, making it hard to predict and adjust FC production. I don't see any justification for that, the algorithm is executed by RJ60's microcontroller software and a much higher frequency could have been implemented.
Having said that, if the SWG turns out to be reliable, and the cell lasts a long time, I will still be happy with it. Especially after switching to a VS pump and going with longer daily runs instead of 8 hours.