Here are my results:
CYA: ??? the when mixing the water with the solution, it never turned cloudy, and when testing, I got to the top of the tube and could still see a faint black dot. I have had it tested a couple of times by the pool store this year. The first time it was 30 and last week it was 60.
The water is a blue color and has been all season. You can see your hand only about 6 inches down. I haven't see the bottom of the pool yet this year We have been swimming because everything isn't testing too bad and the pool store said it would be safe.
Do you think it could be filter issue? We have backwashed and rinsed a few times but the water never changes color.
How should I proceed?