Out of curiousity I read the manual for my Taylor test kit yesterday because I never quite understood the Water Sat Index (Watergram) and really wanted to understand how to use it (if at all). Here are a few questions:
1) Is anyone using the CYA correction to TA table, why or why not?
2) If I want to increase my CH a bit (I have a concrete painted pool @ 170ppm) would Cal Hypo be acceptable in small doses now and then? I do add salt for water softeners into the pool. I am well below range as noted on this site. Does the salt make the water "softer" thereby affecting the CH? I am not seeing any nonbalance problems, just curious.
3) We have had massive amounts of rain in NJ this year. Can the water dropplets hitting the water cause a rise in PH similar to a jet or waterfall? I have had unusual PH/ALK readings this year. With the PH high and my ALK low. Just curious. I have not tested the rain water yet, but I may because of my suspicions about this problem this year.
4) Almost got pool stored yesterday, Went in for skimmer socks, a bottle of Jack's, and 1 replacement reagent for ALK. Upon check out they always ask how you are santizing your pool. With TFP in mind, I confidently say, "Liquid chlorine." (thinking to myself, Clorox honey). Well the guy tells me, I see you are getting some Jack's here, what kind of stain do you have? (He tried to convince me that my brown stains were copper, not). "You know how the chlorine is brownish, the iron is COMING from the chlorine because they use IRON to bind the chlorine." Now, I did not know what to say to that, as the bleach is brownish looking. I told him that when I use Trichlor (it's white), I get staining too. He said I needed to switch to something else to stop the staining. I stopped listening at that point because, I wanted to check with the pros here.
Thanks for the help.