Recently I brought my free chlorine level to around 18 PPM to rid my pool of a high combined chlorine reading. After two days of keeping the level at 18 PPM I went to test the CC again with my Taylor k-2006 kit, when I got to the point where I used R-0003 the water turns pink/red for about five seconds and then turns a green color. Does this mean that CC is present in the pool or not?