u/SkipMorrow

I have the frog, and I think it's working, but I'm not sure. I've been putting 1 tsp non-chlorine oxidizing sanitizer in the tub after each use, and I check the chemistry regularly. The test strips show 0 chlorine in the water, so I am pretty sure the frog isn't chlorine. But maybe it's bromine? Or is it sanitizer and I really don't need to add sanitizer after each use?