Referring, of course, to chlorinated pools. I just checked mine and I'd say the color falls between 0.5 and 1 ppm. How does that compare to, say, when there is a high level of chloramines? Next question, of course, would be: what would be an average level of ammonia in a non-chlorinated (or biguanide) pool? Should there be any? Or, in cases where CDX is used, would that typically generate an ammonia residual?