I used my TF-100 new two days ago. results were as follows:
I added 2 gallons of bleach as per the pool calc and tested it yesterday morning and FC came up to 7. Later that night I added 5 bags of salt. I tested 24 hours later and my FC is 0.5 CC 0.5. Any ideas how I lost so much FC with a CYA of 75?
What to do next?