Hi - in response to your last post, I've drained and refilled. Here are my numbers after refilling based on my K-2005 Taylor test kit. To recap it's a 28K gunite in-ground pool

Free Chlorine - 1.0
Combined Chlorine - 2.0
pH - 8 (acid demand was 2 drops)
Total Alkalinity - 120
Calcium Hardness - 160
CYA - 0

Again my goal is to use the BBB method to balance the water. Your help is most appreciated!
Keith