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The originally reported cya of 110 was done through the dilution method some the 2005 test kit only gives values up to 100. I diluted, got 55ish and multiplied by 2 to get 110. I have the fas/dpd test kit now. More specifically, I bought r-0870 powder and r-0871 reagent to add to my current...

2 points to update. A chlorine puck dissolves the stain as if it never existed. What does that tell you about the stain's origin? I got the fas/dpd reagents. FC - 5ppm Cc - .4ppm I think that's good, right?

Thanks for the replies. I did the dilution to measure the CYA. I know it's high, I just bought this place and there were chlorine tabs in the inline feeder when i moved in. I'll get the additional test kit items. I've got enough bleach to start a SLAM tonight. I'll see what results I get...

The water is a bit green, but not as green as that picture makes it look. I've been keeping the chlorine at 5ppm for the last few days, but I think the color is due to the high pollen levels right now in east TX. The black spots do not go away with brushing. Neither a plastic or wire brush...

I have these little spots on all the sloping floor areas of my pool. They aren't on any vertical walls, they aren't on the stairs. The way it streaks gives me slight hope (denial?) that its just staining of some sort, buI really have no idea. The streaks are all oriented toward the main...

Thanks for the replies. My luck held last night and the rain stopped with about 1/2" to spare before the pool spilled over. There is a passive overflow drain, but it's most likely a bit clogged. That's another project for the list. It was definitely overwhelmed by yesterday's rain. I woke...

I've found a bunch of videos/tutorials on how to drain a pool. It seems that they all involve hooking up a hose to a waste line specifically plumbed into the system for the purpose of draining the pool. I do seem to have a waste line in my system to hook a hose up to. My in-ground pool is...