Our pool is 21000 gallons. At the beginning of the season (and for prior years) I ran the IC40 at 60-70% for about 8 hours per day to get good chlorine levels. Lately the chlorine in the pool has been lower than what the cell used to generate so now I'm having to run at 90% just to get hardly anything. The "More" self test says 40%. It's been a warm summer here in Vegas and water temp is mid 80s (83-85) in the morning going up to 89 (with solar heater) by mid afternoon. CYA was down to 50 and I've kept it at 70 so I added some more but that doesn't seem to help.
Sometimes after a big storm or something I would put the unit on SuperChlorinate mode and overnight the test strip would be off the chart. I just did it the other day and overnight running did raise it up but not as much as in the past.
The unit is 5+ years old (we are now in season 6). I've cleaned it and there is little calcium buildup and the plates seem to be in good condition.
So the question is do these units produce at a steady rate forever or as they age should I have to bump up the output to keep up?
Sometimes after a big storm or something I would put the unit on SuperChlorinate mode and overnight the test strip would be off the chart. I just did it the other day and overnight running did raise it up but not as much as in the past.
The unit is 5+ years old (we are now in season 6). I've cleaned it and there is little calcium buildup and the plates seem to be in good condition.
So the question is do these units produce at a steady rate forever or as they age should I have to bump up the output to keep up?