I finally replaced 40-50% of my water yesterday and the test results from this morning look good:
Water temp 80 degrees - I thought it would have been cooler. I was surprised using the Pool Calculator that my recommended Cl level is between 4-8. I thought it would be in the 2-3 range with my CYA at 50. Does this make sense?
I'm going to add 131 oz of bleach now to get it to 4. I'll be checking the Cl daily to see what it takes to keep it at 4.0, of course with the forecast here in Dallas 99 degrees and sunny through Sunday it will likely take more than usual this week.
All my neighbors that have chlorinators in their pools and are using the 3" tri-chlor tabs like I was think I'm crazy for draining my pool. Has anyone else experienced that? They say "What's CYA, I never test for that."