With the possibility of liner bleaching, I wouldn't necessarily wait a week to let levels drop. Usually, liner bleaching is not a problem. But unfortunately on some liners, levels of chlorine effective against mustard overlap the levels that can cause bleaching.

This is not a process that someone like Consumer Reports has carefully studied and optimized, with exact data collection and meaningful statistical analysis of that data.

Pool chemical companies have NO interest in spending serious research $$$'s to find out how to optimize algae removal with cheap, unprofitable chlorine.

So you have to fly by the seat of your pants, to some degree.