Im working on a pool that was converted from bromine to chlorine. At opening I added 2 1/2 gallons of bleach to get to 12ppm(15k ag pool).The water is crystal clear, I can smell chlorine in the water but dont know if its normal or not, I know that every time I add chlorine it reactivates my used bromine and I need to know how to test the chlorine level? It continually shows above 10ppm even though I haven't added any bleach for 3 days.

Here are the numbers so far:

TC?
CYA 0
ALK 120
Water 71 degrees
No one in the pool since opening
pump running 24/7


Thanks
John