Taking spa (covered & outdoors) back from pool service!

[SpaMaster]

Using Taylor K-2005C, I measured:
ph...7.0
Alkalinity...100
Calcium Hardness...200
CYA...0
Showing clear on bromine (0 ?) but there are 4 tabs in chlorinator from servicer.
Spa was just drained and refilled 3 days ago.
Spa is 6 x 6 in-ground.
Any advice would be truly appreciated

 

[Mdragger88]

Is this a bromine or chlorine tub?