I haven’t added any chlorine yet because I wasn’t sure if the FC was at zero to start but it sounds like it is.If sample doesn't turn pink after one heaping scoop your FC is 0.0. Don't add anymore powder...you'll just waste it.
How much liquid chlorine did you add, what strength, and how long did you wait to test?
how do I know how much liquid chlorine to start with? I tried adding my test results in Pool Math but it said I need a subscription.
I have a 33,000 galloon pool, salt