Quoting from the How to Chlorinate Your Pool, "Usually you must add about 2-3 ppm daily to keep the pool properly sanitized." Using the Effects of Adding tool within Pool Math, for a 29,000 gal. pool, adding 94 fl.oz. of 10% chlorine will raise FC by ~2.5ppm. At the current chlorine cost of $5.67/gal, I'm looking at $4.14/day--->$29/wk--->$116/month--->$463/season(4 months). Do these cost estimates seem correct?