I purchased the tf100 online and amazingly got it the very next day. My pool was swamp green, I've been putting bleach and shock in it. Last night I put in like 4 gallons, today 0 chlorine. I've tried to do the CYA test 3 times now. I've been doing it indoors so no sunlight, but the dot never goes away. never. I'm headed to go get more bleach and probably my... acid. The water now is very cloudy blue.