I know I should totally search more, but I'm not finding much info on my issue. People seem to have problems keeping PH and TA down, but I need to raise TA and lower PH.
I thought I was doing a pretty good job at keeping my pool balanced until I started seeing more and more scaling. I've realized that I haven't been watching my PH close enough. I use a Jandy SWG and I was only adding MA once a week. During this time it would shift up from about 7.4 to 7.8. Never really higher than 7.8. Anyway, I've started paying a lot more attention to CSI to keep my water steady at around -0.5 to help dissolve the scale. I'm needing to add acid every couple of days to do this. Paying attention to the CSI has caused me to pay attention to TA. I've noticed mine is at 50-60ppm. I think I should be striving for 80ppm with the SWG, but even after adding 8lbs of baking soda I can't really move the needle upwards.
So my questions:
- Keeping my PH low is keeping the TA low and I'm afraid to add more baking soda into the pool. Is there a way to bring TA up while keeping PH at 7.2?
- How much baking soda can I add to the pool before running into other issues... perhaps raising TDS beyond recommended values?
- Will doing the borates thing help any in this situation? From what I've read it seems like it may, but I really thought I could move the TA up to 80 and still keep my PH in line.
- Anyone have thoughts on the right CSI to help control scale? It's a gunite/pebble pool and I'd hate to be doing long term harm here.