linen said:I would do another OCLT tonight with your fingers crossed. What does the water look like?
It was a little hazy the other day, but it looked pretty clear today. The test that came back with a FC level of 19.5 was taken just before dusk with a heavy overcast so I will use that as the starting point for another OCLT.
There has been some yellowish/orange color staining on the liner in some spots that I am told has been present most of the season. It is an issue that has popped up at least the past three seasons to my knowledge. This is my 1st summer in a few years not working out of state so I have not been present to witness it until now. I am told a few doses of something called yellow out resolved that issue in the past. My running theory on that is some metal staining since it wont brush off and I recall my mother mentioning that the pool store detected copper in the water at the start of the season. She put some kind of algicide in when she closed the pool last fall and I wouldn't be surprised if it was one of the not so great kinds that contained copper. It is not covering the entire liner, but it is widespread. The water itself is clear.