We opened our pool yesterday to a green pool. Well, actually the water appeared clear, but the algae was all over the bottom and sides of the pool.
I immediately started adding bleach. I kept testing the levels and not once could I get a chlorine reading. I ended up adding 12 gallons of bleach and as of last night, I still couldn't get a reading.
What's odd is that I woke up this morning to a cloudy pool....no sign of green whatsoever. So, obviously the bleach IS there.
Could it be that my reagent is bad? When I checked the CYA, I could fill the tube all the way up and still see the black dot at the bottom. Does that mean I have NO CYA or does that mean it's so high that it's off the charts? I have the test kit recommended on this site from Leslie's. It's a huge box that checks everything.
When I get home from work this afternoon, I'll test again and post my readings. Just curious if the reagent is bad....