Quote Originally Posted by SeanW View Post
I bought a Taylor K-1005 kit before I found this forum. I figured I would need a K-1515 if I ever get the chlorine over 5ppm.
To manage your pool, you need BOTH the FAS-DPD test AND the CYA test. Your high CYA *requires* higher chlorine levels -- read the Best Guess page page, linked in my signature.