So I mostly use liquid chlorine but switch to the chlorinator from time to time. I had a single speed pump earlier in the year which ran for around 8 hours / day. The Pentair R171218 chlorinator in the bottom feed configuration didn't quite keep up (setting was maxed out). I approximate that it was putting out 2 ppm per day where 2.5 to 3 are required.
Now I've upgraded the system to a Jandy VSP which runs for 22 hours a day and have the opposite problem. The FC rose to shock levels very quickly. I dialed the Pentair back to 20% or so, and the FC was still holding at 12 ppm after a week. I've dialed it back further, now it's only two graduations above OFF.
One observation is that the chlorinator has more water in it now, it's about 1/3 full as opposed to barely any water before.
Is any of this to be expected? I'll switch back to liquid chlorine at some point.
Now I've upgraded the system to a Jandy VSP which runs for 22 hours a day and have the opposite problem. The FC rose to shock levels very quickly. I dialed the Pentair back to 20% or so, and the FC was still holding at 12 ppm after a week. I've dialed it back further, now it's only two graduations above OFF.
One observation is that the chlorinator has more water in it now, it's about 1/3 full as opposed to barely any water before.
Is any of this to be expected? I'll switch back to liquid chlorine at some point.
