Hi, Lee,

Ben's kit has two tests for Cl. A daily, easy one that goes to 5ppm and a drop based slightly more time consuming one that lets you test to shock value (up to 50ppm or so, I think)

I'm beginning to think metal in the water is the new "global warming" issue. I can not remember so many folks having metal problems. Yes, you need to get that resolved....your life will improve.

I guess the danger in running lower stabilizer levels is that the FC will "burn off" quicker on hotter days.
Bingo!! Get the kit (or one that measures FC, TC, CYA, CH, pH, and Alk.) It's the best money you'll spend