- Nov 12, 2017
- 12,645
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I don't know how much this matters, but the other advantage to an acid injector system, is that my pH is not bouncing around as much. Same theory as using a SWG: maintain a constant FC level throughout the day, instead of shocking once a week, or even once a day. Everyone here that has pH rise sites what they let pH get up to, and what they bounce it down to, in order to maximize the number of days between dosing. That's the logical, practical solution. But everyday my pH tests at 7.6. It hasn't budged. I'm sure it wavers throughout the day by some amount. My IntellipH is only running seven hours, so my pH must creep up a bit while it's off at night, then comes back down while it's on during the day. But my IntellipH runs at the same time my SWG does, so what was causing at least half of my pH rise is being addressed at the same time, in other words, the IntellipH has neutralized the rise caused by the SWG, which only leaves what my high-TA refills and plaster are contributing. So instead of my ph riding up and down 0.4 or 0.5 points, every day, it now may be only 0.1, if that. Does that make for better water conditions for plaster longevity? I'm going to pretend it does...