After refilling the hot tub, I started balancing the water. Due to the water softener, CH was 0. Over a few days, I gradually added enough calcium chloride to get the level to 140. I added about a third of the required amount on the first morning, then tested the level the next. I did this until I got to 140. That was 2 days ago. This morning, I tested it again (just to be sure) and after adding the 5 indicator drops, instead of it turning red like it has been, it went to a very pale pink. So, 2 questions:
Why is this happening now when it's been working fine for the past several days? No water has been replaced.
If I add 5 more drops, it changes like it normally would. Is the test result still valid?
I really need to get the TF-100, hopefully money will allow for that Friday. I'm using the Wal-Mart drop kit right now.
My test results are:
FC - 4
TC - 4
pH - 7.6
Alk - 60
CH - 140?? (not so sure now... )
CYA - 40
*EDIT* After trying the test again just now in better lighting, even though the sample is very very pale, it still takes 14 drops to shift to blue. Is this just a result of a crappy kit?