Just finished draining and refilling a 200gal dream maker spa. Added 1oz of 99% sodium bromide per the package instructions. PH 7.6, TA 60, CH 110. When I try to check total Bromine my test kits (all 3) show 0ppm. Test kits are Taylor K-1001 (used for quick daily checks) Taylo K-2106 (used for...