I’ve read most of the posts on this forum about using bleach; and I think I’m ready to give that a try. I've been battling a chlorine "demand" with calcium based shock and dichlor (not at the same time, of course); and recently saw some green algae appearing in places. I've been putting 2 lbs of shock in my 16,000 gallon pool every day since June because the chlorine won't hold. The CYA reading was always in range (water tested once a week). Anyway, a couple of days ago I used a whole bottle of algaecide plus and a whole bottle of mustard algae killer at my pool company’s recommendation. So here’s my question: will the copper that the algaecides put in the water cause a problem if I shock with bleach? We got about 3 inches of rain last night, so the water has been diluted some.