I have just finished the mustard algae protocol and my chlorine is on its way back down to normal. I noticed on the mustard algae chart, it listed a "mustard algae minimum" chlorine level. Since I've had mustard algae now, should I use that as my new minimum chlorine level? Or, if I followed the protocol, should I be safe to return to my normal chlorine levels based on my CYA? I don't close my pool in winter, so at the very least, would I be safer at the lower chlorine level when it's consistently cold out? Thanks!