Here are my current pool readings:
pH 7.2 (just lowered pH and TA to this level, aerating now back up to 7.6
CYA 60 (recently stopped using trichlor, bringing this down over time with rain and backwash)
I have been working for a while to get my TA down, and it's not been going all that smooth. Today, I tested the TA of my fill water, and it comes in at about 410!
Here are my questions...in order to maintain my TA moving forward, if I add approx 2% (which is about 285 gal in my pool) refill water with TA of 410 (figure that to be just over an inch due to evaporation), how much will the TA go up in my pool with the levels mentioned here.
More to the point, should I add acid as I fill the pool, just before, or after I fill the pool (how long after if so), or is there a better way to do this to offset the TA increase?
Is it better to top off with less water more frequently, or more water more frequently...or does it matter?
I have constant flow from a spa spillover, so plenty of aeration going on. I'm working toward a target TA of 60...any thoughts on this given all that I've said in this post?
Thanks for your insights,