I am having trouble understanding how to correctly perform this test, I've watched the videos and have read instructions several times.(I have the Taylor TF-100 test kit)
The black dot fades but doesnt fully disappear, all of my other test numbers are where they should be(TA at 60 May need to raise?) and water is crystal. Any help is appreciated. Thanks in Advance
The black dot fades but doesnt fully disappear, all of my other test numbers are where they should be(TA at 60 May need to raise?) and water is crystal. Any help is appreciated. Thanks in Advance