I have been using this method for about a month with great results however I had to leave town for a few days and my chlorine dropped to 2.5 (min is 5 with my cya of 65). I raised it back up to 8 however I can see algae on one of the walls. Can a quick drop below the min FC level cause an algae bloom as it seems like this popped up fast? Do I need to SLAM? If so, should I start now or wait till the sun goes down as I am in central texas and we are getting full sun and 100 degrees in afternoon?
Edit...my ph was also 8-8.2 when I checked this morning and I have since dropped that to 7.4. Does this have any effect on how quickly algae can bloom?