Hi. I am just starting out testing my own water when I opened today and used the TF-100 for the first time today when opening my 18' AG. When using the TA test once I did step 2 with R-0007 and then R-0008 my solution was already red instead of green. This was before step 3. I ran the test three different times about 2 hours apart and still have the same results. Can anyone please tell me what I need to do to fix this?
Ph-too low to tell