Q. For minimal eye irritation, pH value of swimming pool water should be in the range (Solved)
1. 6.2 to 6.8
2. 6.5 to 7.0
3. 7.0 to 7.2
4. 7.5 to 7.6
5. None of the above
- d. 7.5 to 7.6
1. 6.2 to 6.8
2. 6.5 to 7.0
3. 7.0 to 7.2
4. 7.5 to 7.6
5. None of the above