Ok,
So heres the results from testing:
calcuim - 130ppm
pH - 8.0
TA- 80ppm
bromine - 10ppm
I guess my levels were a bit too high. I added some Spa Down which will lower the pH and TA, and also put less tablets in the floater to see if that will bring down my bromine to a better level in the long run. Hillbilly , you mentioned it may not be scale - its hard to see the color of it since my shell is also white. The texture though feels like ultra fine sandpaper.