Just started browsing the board the other day when we decided to purchase a 15' Intex pool. I have a pretty good idea of how basic pool chemistry works at this point and started my pool off following the instructions in the beginner's guide for temporary pools (pool-school/temporary_pool_guide) . My issue is that I'm trying to spend as little as possible on maintaining this pool (only keep it up for the next month), so I purchased a 3-way HTH test kit from walmart. I measured the pH today and it looks to be in 7.3 range, which should be fine, but it got me thinking about when I do go to adjust the pH. Messing with the calculator showed me that TA has a HUGE effect on how much acid or base you need to add to achieve a desired result.
So how do you go about making these adjustments when you don't know your TA. It looks to me that a pretty usual TA is 70-100 to start off, so possibly assume this, but make small adjustments?
Thanks for the help.