I drained my pool water according to the % (43) the pool calculator said to decrease the salt in my water. It was way over.
I did complete set of tests this morning before I went to pool calculator and added anything back.
1) I did CYA test in the sunlight with the sun to my back as I read from someone's post here. With that light it was 70. I noticed as I walked to the table that the black dot was still there when I stepped into the shade, so out of curiosity I kept adding and the black dot didn't disappear until the reading was 50 in the shade. Which is more accurate?
2) Copper measured at 0.1 or 0.2. That's basically nothing with most things. Is that still the case with copper or is it so damaging that even that small amount is not good?
TA 150 always high
CH 360 should I do something to lower this or I don't need to worry about it?
CYA 70 sunlight 50 shade
Salt 3380 yay!
Thank you. Oh, it hit about 109 degrees here yesterday. I read that a fountain will keep water cooler. Is there something you would suggest for my pool? It seems large to me, but it is very small in comparison to most of yours.