Sorry to be a broken record here, but we really need some current water testing results taken with a drops-based kit to be able to help. Without having numbers to look at, we can't really help. We would just be guessing about what is going on with your pool.

There are quite a few questions that have been posed to you in previous posts in this thread and also some steps to follow. That's about all we can do without testing results.

If you can get some good numbers, post them. (Get a good kit. That is a critical component. (Taylor K-2006 -- see testkit link below.)

I would also suggest to you to do a lot of reading here on the forum, especially the stickies at the top of the subsections. Also, read on our sister website www.poolsolutions.com. Lots of good information there as well.