First, thanks for all the time and energy you guys have put into this site. I've read for hours, learned many lessons, and and now transitioning to the BBB method since after 1 season (brand new 1st time pool owner) I've already had CYA->algae problems. My question is - I have the DPD test kit from Leslie's which seems like a pretty good kit, but the range is 0-5ppm, which supplemental kit should I buy? I'd like to be able to test shock levels (even though I should hardy if ever need to shock) accurately, and track whether I'm losing chlorine overnight in shock situations.
Is something like this what I need? http://www.hach.com/product.detail-over ... 7640219528 Anyone else have any suggestions for just a more sensitive DPD portion of a test kit?
Also, here are my numbers from testing: https://docs.google.com/spreadsheet/ccc ... CNkE#gid=0