5. For better disinfection, we'd like to increase amount of ) by maintaining pH less than 7.5. 1. H' 2. HOCL 3. CI 4. OCI 6. From CT table for Giardia Cyst, what chemical achieves 99.9% inactivation at 10C and pH 8.0 with CT value of 40?( ). 7. UV is strong disinfectant and gaining popularity nowadays. It is more affordable nowadays thanks to the ) design 1. Digital 2. Modular 3. Analog 4. Eco-friendly 8. Ozone is regulated because it can cause DBP problem. (True / False)