Like the sureline edger better, this thing is to clumsy, but then again I'm OCD.
Industrial Test Systems WaterWorks 480023 Free Chlorine Test Strip, 5 Second ...
Aug 06, 2019
Very inaccurate
Very inaccurate, this test strip showed that my FC was around 4, when actually the FC was around 14 using a TF-100 drop test kit.
I figured maybe the strip was bad so I used about 3-4, same results.