We finally got our hot tub repaired and filled with water. I have read the "How do I use Chlorine in my Spa (or poo)?" post a couple times and I have been keeping my AGP balanced well.
First numbers straight from city water:
FC = 2.5
CC = 0
pH = >8.2
TA = 180
CH = 150
First on my agenda was to bring the pH down - I decided that since I also want to lower my TA to bring the pH down to 7.2 and with the natural aeration of the hot tub the pH will rise back up. I added acid according to the pool calculator and it was down to something between 7.5 & 7.8, so I added more acid to lower it some more.
Next I added some DiChlor to raise the FC and CYA. I added enough to raise the FC to 10, but in my conversion from ounces to teaspoons somewhere I went wrong and ended up with a FC of 12 - but this retest may have been a little early for full mixing to occur. I know in my AGP you all say to wait 30 min for full mixing to occur, how long should i wait in a hot tub?
So do I appear to be on the right track?
My goals are:
pH 7.4-7.6 (after I lower my TA)