I am having an ongoing problem this season with my Hayward T-CELL 15 keeping up with chlorine production. This is my 9th season with the pool (vinyl liner, 87500 litres) and this chlorinator. In years past, I run the pump 11 hrs a day with the SWG set to 20-40%. Over the previous two seasons I had increase the SWG from the 20% to 35% and then 40%. However this year, I have had to increase my pump run time to 12 hrs a day and the SWG to 90% just to keep chlorine around 5ppm. As a test, I dropped the SWG to 85% on Friday and tested the water on Sunday and FC was 3.5ppm. (It was a hot weekend with many people in the pool). One other item of note is that just before 11am this morning, I checked the Diagnostics menu and it showed the chlorinator was turned off as the % was met. Considering the pump turns on at 7am, and from my understanding, with the SWG set to 85%, it should be running 85% of the 12 hour runtime which would not be 11am in the morning. Am I understanding this correctly? Or does it run 85% of each hour?
Once I turned the SWG back one the diag readings are as follows:
+25.14V
+7.01A
83F
3300PPM
Readings (Taylor 2006kit):
FC: 4ppm
CC: <.5ppm
PH: 7.4ppm
TA: 75ppm
CH: 300 ppm
CYA: 40 ppm (working on raising this to 70ppm)
I have cleaned the cartridge filters recently as pressure was reading high. I have backup filters that I use when opening the pool when the pool comes back from winter. I have cleaned each set of filters twice so far since May which is uncommon. After initial opening and first cleaning, I usually get away with cleaning the filters once more throughout the season. The pool was quite green this year after winter. I wasn’t thorough in the fall removing leaves as I should have been.
I am trying to determine if I have invisible algae or if my T-Cell is has reached it’s lifespan (or perhaps another issue?). I recently inspected the cell, soaked it in water / muriatic acid as per recommendations. I may have noticed that one of the grills in the cell looked paint chipped. If I recall, the grills are white with one looked like I could see metal in a small spot. No obvious build up on the cells.
I have been following the TFP methods since I built the pool and my water after initial balance is usually quite consistent. Throughout previous summers, the only real balance I have to do is lower PH from 7.8 to 7.4 every 2-3 weeks and adjust the chlorinator (+5% or so) as the temp rises during the summer months.
From what I am reading, 8 good seasons with this cell may be as good as it gets but since I am diagnosing this myself, I don’t want to sink money into a new cell if that is not the issue.
Thanks for any suggestions.
Once I turned the SWG back one the diag readings are as follows:
+25.14V
+7.01A
83F
3300PPM
Readings (Taylor 2006kit):
FC: 4ppm
CC: <.5ppm
PH: 7.4ppm
TA: 75ppm
CH: 300 ppm
CYA: 40 ppm (working on raising this to 70ppm)
I have cleaned the cartridge filters recently as pressure was reading high. I have backup filters that I use when opening the pool when the pool comes back from winter. I have cleaned each set of filters twice so far since May which is uncommon. After initial opening and first cleaning, I usually get away with cleaning the filters once more throughout the season. The pool was quite green this year after winter. I wasn’t thorough in the fall removing leaves as I should have been.
I am trying to determine if I have invisible algae or if my T-Cell is has reached it’s lifespan (or perhaps another issue?). I recently inspected the cell, soaked it in water / muriatic acid as per recommendations. I may have noticed that one of the grills in the cell looked paint chipped. If I recall, the grills are white with one looked like I could see metal in a small spot. No obvious build up on the cells.
I have been following the TFP methods since I built the pool and my water after initial balance is usually quite consistent. Throughout previous summers, the only real balance I have to do is lower PH from 7.8 to 7.4 every 2-3 weeks and adjust the chlorinator (+5% or so) as the temp rises during the summer months.
From what I am reading, 8 good seasons with this cell may be as good as it gets but since I am diagnosing this myself, I don’t want to sink money into a new cell if that is not the issue.
Thanks for any suggestions.