So...what does it mean when the cya tube black dot never disappears?
My test results with the tf 1000 are
Fc. 2.5
Cc. 0
Ph 7,2
Ta. 60
Is this ok?
Sandy
My test results with the tf 1000 are
Fc. 2.5
Cc. 0
Ph 7,2
Ta. 60
Is this ok?
Sandy