Sorry, I hadn't noticed the posts were a few weeks apart. Just wanted to make sure you were on track!I have a TF-100, and yes I dropped my TA quite a bit in the last few months as part of a test and it has worked.
I have a rather lager spill way from spa to pool and the aeration was causing pH to climb daily and I was having to add acid all the time. I dropped the TA down so see if it would help with the higher PH, and PH rise seems to have slowed, only have to add acid every second or third day and only 12 oz at a time instead of half a gallon every day.
You are getting closer on the pic. Open the pic in PB, copy the IMG code to the right of the pic and paste it in the thread and it will embed it in the pic like this,I think I figured this out finally, pics to white spots below.
Numbers from Yesterday: