ClearBlue Ionizer manual and pool ionizer questions Pool and Spa Ionizer Help Manual for Operation and Installation [DOWNLOAD PDF] Register your ClearBlue Ionizer Warranty Common Technical Questions Which replacement cell do I buy for my ClearBlue Ionizer? My new replacement cell has only 2 pins on the plug. There is no middle ground pin. Is this OK? The Ionizing light was blue, but now it is flashing red. What does that mean? My replacement cell doesn’t fit in my tee How do I open my ClearBlue mineral pool? Should the ClearBlue controller have power all the time or go off and on with the pump? How do I know when it’s time to change the cell? Does the tee have to be horizontal or can it be another direction? Why is there a green/blue/turquoise ring around my hot tub? I can’t get my ion level to increase to 0.2ppm How do I install the ClearBlue Ionizer on my pool? How do I install the ClearBlue Ionizer on my hot tub? How do I close and winterize my ClearBlue mineral pool? Help ForumsInstallation Q & A Maintenance Q & A Troubleshooting Q & A Didn’t find an answer to your question? Please contact us.