I presently have my cya at 50, but last year (first year with a pool) it was at 80 when I opened it. When it was at 80, I was adding about 0.5 jug a day, now I'm adding about a jug a day. We only use the pool during the weekends, so most of my chlorine is lost due to the sun, should I raise my cya to 80 again? Any downside to 80 cya?