I bought a house in the fall, let the pool turn to a swamp over winter. Then I binge-educated myself on this site and some others. Using Taylor kit for testing.
Started with a CYA of about 100. SLAMmed for weeks going through dozens of jugs of bleach. Pool got clear, added salt, now working on getting the generator tweaked to maintain the FC levels I need.
So that's where I'm at. However, last week when I tested, my CYA seemed to be around 50 ppm. It was 100 before I started slamming. This was a maybe 5 weeks ago--ish. I thought maybe the bright bathroom lighting was causing me to see the black dot easier.
Today (I was out of town for awhile) I did a full round of testing and the black dot won't seem to go away. It looks like CYA is around 30-40. This time I checked both bathroom lighting and in direct sunlight.
Since apparently the only way to reduce CYA is by dilution, is it possible that I lowered it that much in just a couple of months just by rain and topping off with hose water? I was backflushing around once per day for a couple of months, but its not like I let the backflush run for a long time. Just until the discharge turned clear (few minutes maybe).
At this point I feel like I have no confidence in my CYA numbers. Thus I have no idea what level do drop my FC to. With only the generator running the past week, I'm at about 12 FC right now. Way too high for only 30 CYA. I was going to target around 7 FC when I thought my CYA was closer to 100. But now I don't know. I don't want to make the mistake of adding more CYA again, only to find out I wasn't doing something right and end up with super high CYA levels.
And advice would be much appreciated. This site and forum has been of great help to me and I appreciate the time spent by everyone helping others.
Started with a CYA of about 100. SLAMmed for weeks going through dozens of jugs of bleach. Pool got clear, added salt, now working on getting the generator tweaked to maintain the FC levels I need.
So that's where I'm at. However, last week when I tested, my CYA seemed to be around 50 ppm. It was 100 before I started slamming. This was a maybe 5 weeks ago--ish. I thought maybe the bright bathroom lighting was causing me to see the black dot easier.
Today (I was out of town for awhile) I did a full round of testing and the black dot won't seem to go away. It looks like CYA is around 30-40. This time I checked both bathroom lighting and in direct sunlight.
Since apparently the only way to reduce CYA is by dilution, is it possible that I lowered it that much in just a couple of months just by rain and topping off with hose water? I was backflushing around once per day for a couple of months, but its not like I let the backflush run for a long time. Just until the discharge turned clear (few minutes maybe).
At this point I feel like I have no confidence in my CYA numbers. Thus I have no idea what level do drop my FC to. With only the generator running the past week, I'm at about 12 FC right now. Way too high for only 30 CYA. I was going to target around 7 FC when I thought my CYA was closer to 100. But now I don't know. I don't want to make the mistake of adding more CYA again, only to find out I wasn't doing something right and end up with super high CYA levels.
And advice would be much appreciated. This site and forum has been of great help to me and I appreciate the time spent by everyone helping others.