Hello,

I have an AG pool with deep end, 13,500 gallons, use bleach for sanitizer, borax and baking soda when necessary (none this year so far though).

Here are my numbers, and I just wanted to ask you experts if I need to raise my TA a bit or just leave it alone. Also...is my CYA in a good range if I like keeping the free chlorine level at around 3?

Water is crystal clear and about 73 degrees right now.

pH 7.5
TA 80
Fr Ch 4
Cmb Ch 0
CYA 32

Also...I am using test kit PS233. All the chemicals seem to be working fine, but I do notice that the R-0870 is a medium grey color. On my kit it says to replace it when it becomes this color. But I thought that is the color it was when I purchased it. What color should it be? Are there any other of the chemicals that need to be replaced periodically? I am on my third season with this kit. I'm not looking to spend more money, but do want things to work properly. If some things need to be replaced periodically, I would love to know which ones. I am very careful to keep everything dry. I store it indoors in a closet packed in the ziploc bag it came in.

Thanks,

Sandy Dittmer