I see this referenced from time to time in many posts and can't figure out what this test is ... It's not documented in the Abbreviations link ..
What is it? Thanks
What is it? Thanks
You're testing FC and CC. Those two added together give you your TC number. The OCLT test is passed when you have a loss of 1ppm or less of FC and a CC reading of .5 or less. The third criteria is crystal clear water.cody21 said:In additon to that previous question above, is ANY drop normal?? e.g., What if my FC is say 7.4 at dusk -- what would a "normal" drop be - or should it be 7.4 in the morning ?