Hi.
Since I occasionally teach high school chemistry, I've been recruited by my neighborhood in Virginia to run chemicals for the pool, an in-ground 4 lane, 200,000 gallon pool. We use liquid chlorine and HCl to manage pH. I've got the hang of adding Calcium chloride to maintain proper hardness levels and sodium bicarbonate to maintain proper alkalinity.
The levels for chlorine, pH, hardness and alkalinity have all been maintained in an acceptable range over the past 3 years that I've been doing this.
But I haven't figured out stabilizer yet. I added what seemed to be quite a bit of cyanuric acid (15 pounds?) but didn't see any rise in the levels as I tested.
My questions:
1) How much cya is necessary for a pool this size?
2) If I can get the cya to proper levels, how much will it reduce the chlorine use?
3) How "acidic" is cya, in terms of will it reduce the pH too much if I add it all at once? My concern is if the chlorine level is right and the cya reduces the pH, I can't add chlorine to raise the pH, as it is now stabilized and will remain at too high a level. does that make sense?
So, any suggestions or links to threads where this has already been answered would be quite helpful.
Thanks.
- Chris
Since I occasionally teach high school chemistry, I've been recruited by my neighborhood in Virginia to run chemicals for the pool, an in-ground 4 lane, 200,000 gallon pool. We use liquid chlorine and HCl to manage pH. I've got the hang of adding Calcium chloride to maintain proper hardness levels and sodium bicarbonate to maintain proper alkalinity.
The levels for chlorine, pH, hardness and alkalinity have all been maintained in an acceptable range over the past 3 years that I've been doing this.
But I haven't figured out stabilizer yet. I added what seemed to be quite a bit of cyanuric acid (15 pounds?) but didn't see any rise in the levels as I tested.
My questions:
1) How much cya is necessary for a pool this size?
2) If I can get the cya to proper levels, how much will it reduce the chlorine use?
3) How "acidic" is cya, in terms of will it reduce the pH too much if I add it all at once? My concern is if the chlorine level is right and the cya reduces the pH, I can't add chlorine to raise the pH, as it is now stabilized and will remain at too high a level. does that make sense?
So, any suggestions or links to threads where this has already been answered would be quite helpful.
Thanks.
- Chris