I have had a pool for 15 years but just a few weeks ago gave my pool store the heave hoe and switched from trichlor tabs to bleach.
I see in the Pool School that the recommended level of TA for a vinyl pool is 70-90+ but to ask the forum for advice on what would be ideal for my pool. It runs east to west on the southern facing side of my house so it gets lots of direct sun. My water test results from this morning are below.
In all the years of the pool store water testing they always had two alkalinity results, a Total Alkalinity result an an adjusted alkalinity result. They always used the adjusted result for making any recommendations. I now have a Taylor K-2006 test kit and it came with a book "Pool & Spa Water Chemistry" that gives a formula and chart to use to get an an adjusted alkalinity result.
When posting TA should I use the results I get from the test or should I use the formula and use the adjusted result?
My pool is crystal clear.
Water Temp - 86f
FC - 4.5ppm
CC - 0ppm
PH - 7.7
TA - 120ppm (109.8ppm is adjusted result using the formula from Taylor)
CH - 80ppm
CYA - 35ppm
Do I need to do anything?
Note: I have not put any Borax in my pool as I have not had to increase PH ( I have some on hand though as well as baking soda)
Thanks in advance!