I have been using the Taylor TF-100 test kit from TFTestkits.net. I always use the R870 and R871 for testing my levels. Well, I am almost out of the 870 and 871 besides we're starting a new summer season. I just found out we now have a Leslie's Pool Supplies, but they only carry what he calls the drop test...you know the one where you have the chlorine on one side and the pH on the other? I don't think you all feel that is accurate enough, right? Would you recommend I go ahead and purchase more R870 and 871?
Also, do you ever use the drop test (the yellow/red container)?