Just want to make sure I am doing this right. I added 10ml of spa water to the larger cylinder with two scoops of the 870 powder. I counted out 20 drops of the 871 reagent before the water turned clear from pink. This means my FC is 10ppm correct?
Ok just tested again and the 4 cups put the FC at 14ppm (10ml sample, 1 scoop of R-870, 28 drops of the R-871). Pool Math says that 32oz should of equated to 38ppm..
Also had an interesting result with the TA test.. using a 25ml sample, the water turned blue not green after adding two drops of R-0007 and five drops of R-0008. Also, after 18 drops of R-0009 the water turned yellow and not red.. hmmm