Just did my first set of tests on the swim spa:
TA-190 (this was an estimate because it never turned red, just purple)
I added 8 oz of 8.25% bleach, ran the pumps & filters, and retested 30 minutes later with the following results:
TA-150-200 (when do you stop adding drops-when it first changes color, or when the color stops getting darker?)
I didn't retest CYA and CH after adding bleach because I didn't think these would be impacted.
My water is still a little cloudy. I use it about 4 times/week, 1-2 hours at a time. The pumps/filters run twice a day for 3 hours each cycle, plus any time I'm in the pool. I've been cleaning the filters once a month. I had been using MPS weekly, but haven't used it in two weeks in order to get an accurate CC measurement. The spa has two small fountains that aerate the water when the pumps are running. The spa stays covered when not in use. Also, the spa has an ozonator which is on when the pumps are running.
Any suggestions for getting rid of the cloudiness? Everything looks okay to me except the TA seems high. How do I get that lower?