Evidence suggests my 4-season-old Aqua Rite T-15 cell is no longer producing chlorine. Water is balanced, cell is clean and there are no bad indicator lights so I am assuming the cell has reached end of life. I am considering a replacement cell.
My estimate of pool volume is 24k gallons. A T-9 cell should cover this size (up to 25k) but the original contractor chose and installed the T-15. I'm not sure why.
Can I save the money and use a T-9 with the existing control unit? Would I have to replace the unit, or make some firmware update (as was hinted on some internet site I found). Or should I stick with what worked for 4 years and pay the premium for another T-15 cell (and replace it with no control unit changes).