My Calcium Hardness had climbed up to 650ppm from 450ppm back in Aug 2012. That's about 10ppm/month.
I did a 100% water change on April 19th, 2014.
DATE 04/17/2014 (Before Water Change)
Water Temp: 72
DATE 05/15/2014 (1 month after water change)
Water Temp: 80
Balance: 0.0 (Watergram)
CSI: -.24 (pool calculator)
I'm having a couple problems:
1. The TA is high, I'd like to get that down to around 70
2. The pool is taking alot of muriatic acid (about 1.5 pints a day) to keep the PH in check
3. The CH is below 250 but will climb 10ppm each month, so that will self correct in 4 months.
I don't know why the pool is taking so much acid to keep the PH at 7.5 I know the chlorinator will cause the PH to rise, but my chlorine generator is set to 70% right now. It runs 3 hrs/day at 2500RPM and 3 hrs/day at 1000 rpm. It's making more chlorine than I need right now, so maybe I just need to reduce the run time. It has been over 100*F here over the last couple days, so I was reluctant to turn it down to much.
You guys have any thoughts on how to deal with this? Thanks.