CAT 3500 Owners Manual
Page 26
... to ensure pH stability. System Maintenance CAT 3500 Controller Package The CAT 3500 controller unit is important to note that changes in pH, cyanuric acid concentration, total dissolved solids, and use . 25 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Water Maintenance Always test and record water chemistry readings in this manual. Calibrate pH periodically as described earlier...
... to ensure pH stability. System Maintenance CAT 3500 Controller Package The CAT 3500 controller unit is important to note that changes in pH, cyanuric acid concentration, total dissolved solids, and use . 25 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Water Maintenance Always test and record water chemistry readings in this manual. Calibrate pH periodically as described earlier...