To make a long story short, here is where my sister in law is and I need some help in directing her.
She has an above ground pool with a sand filter and a dome over top of it. She opened as usual and everything seemed to be going ok, but then the pool turned green. She was using pucks or granualr chlorine ..... You know the story.
A couple of weeks ago, I turned her on to this site to get straightened out. She ordered the TF-100 from Dave, and got started. I was out of town last week so she and I did not speak until this am, and I am concerned the something is not quite right.
I am having her run a full set of tests and will post them here as soon as I get them.
Where she is right now is that she poured a gallon of MA into the pool to get the pH in line and about 8 gallons of bleach. All of this was according other according to the pool calculator. None of this is really too out of line for a green pool, but then we spoke this am, and our conversation prompted this post.
She tells me that her FC is in the 200 range (she stopped at about 400 drops and the sample was mostly clear). I walked her through the test procedure and as I described each step, she said that is how she was doing it.
Something just does not add up, and the pool is still green.
My initial thoughts are......
CYA way off the charts
I'll post a full set of results and pool specs shortly, but prior to that any reason why the FC test is incorrect?